19870740840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{3919}}^1$

素因数の和:4040

約数の個数: 256

約数和(自身を含む): 65028096000

約数和(自身を除く): 45157355160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 31, 40, 47, 58, 60, 62, 87, 93, 94, 116, 120, 124, 141, 145, 155, 174, 186, 188, 232, 235, 248, 282, 290, 310, 348, 372, 376, 435, 465, 470, 564, 580, 620, 696, 705, 744, 870, 899, 930, 940, 1128, 1160, 1240, 1363, 1410, 1457, 1740, 1798, 1860, 1880, 2697, 2726, 2820, 2914, 3480, 3596, 3720, 3919, 4089, 4371, 4495, 5394, 5452, 5640, 5828, 6815, 7192, 7285, 7838, 8178, 8742, 8990, 10788, 10904, 11656, 11757, 13485, 13630, 14570, 15676, 16356, 17484, 17980, 19595, 20445, 21576, 21855, 23514, 26970, 27260, 29140, 31352, 32712, 34968, 35960, 39190, 40890, 42253, 43710, 47028, 53940, 54520, 58280, 58785, 78380, 81780, 84506, 87420, 94056, 107880, 113651, 117570, 121489, 126759, 156760, 163560, 169012, 174840, 184193, 211265, 227302, 235140, 242978, 253518, 338024, 340953, 364467, 368386, 422530, 454604, 470280, 485956, 507036, 552579, 568255, 607445, 633795, 681906, 728934, 736772, 845060, 909208, 920965, 971912, 1014072, 1105158, 1136510, 1214890, 1267590, 1363812, 1457868, 1473544, 1690120, 1704765, 1822335, 1841930, 2210316, 2273020, 2429780, 2535180, 2727624, 2762895, 2915736, 3409530, 3523181, 3644670, 3683860, 4420632, 4546040, 4859560, 5070360, 5341597, 5525790, 5709983, 6819060, 7046362, 7289340, 7367720, 10569543, 10683194, 11051580, 11419966, 13638120, 14092724, 14578680, 16024791, 17129949, 17615905, 21139086, 21366388, 22103160, 22839932, 26707985, 28185448, 28549915, 32049582, 34259898, 35231810, 42278172, 42732776, 45679864, 52847715, 53415970, 57099830, 64099164, 68519796, 70463620, 80123955, 84556344, 85649745, 105695430, 106831940, 114199660, 128198328, 137039592, 140927240, 160247910, 165589507, 171299490, 211390860, 213663880, 228399320, 320495820, 331179014, 342598980, 422781720, 496768521, 640991640, 662358028, 685197960, 827947535, 993537042, 1324716056, 1655895070, 1987074084, 2483842605, 3311790140, 3974148168, 4967685210, 6623580280, 9935370420, 19870740840]

約数ペア:

[(1, 19870740840), (2, 9935370420), (3, 6623580280), (4, 4967685210), (5, 3974148168), (6, 3311790140), (8, 2483842605), (10, 1987074084), (12, 1655895070), (15, 1324716056), (20, 993537042), (24, 827947535), (29, 685197960), (30, 662358028), (31, 640991640), (40, 496768521), (47, 422781720), (58, 342598980), (60, 331179014), (62, 320495820), (87, 228399320), (93, 213663880), (94, 211390860), (116, 171299490), (120, 165589507), (124, 160247910), (141, 140927240), (145, 137039592), (155, 128198328), (174, 114199660), (186, 106831940), (188, 105695430), (232, 85649745), (235, 84556344), (248, 80123955), (282, 70463620), (290, 68519796), (310, 64099164), (348, 57099830), (372, 53415970), (376, 52847715), (435, 45679864), (465, 42732776), (470, 42278172), (564, 35231810), (580, 34259898), (620, 32049582), (696, 28549915), (705, 28185448), (744, 26707985), (870, 22839932), (899, 22103160), (930, 21366388), (940, 21139086), (1128, 17615905), (1160, 17129949), (1240, 16024791), (1363, 14578680), (1410, 14092724), (1457, 13638120), (1740, 11419966), (1798, 11051580), (1860, 10683194), (1880, 10569543), (2697, 7367720), (2726, 7289340), (2820, 7046362), (2914, 6819060), (3480, 5709983), (3596, 5525790), (3720, 5341597), (3919, 5070360), (4089, 4859560), (4371, 4546040), (4495, 4420632), (5394, 3683860), (5452, 3644670), (5640, 3523181), (5828, 3409530), (6815, 2915736), (7192, 2762895), (7285, 2727624), (7838, 2535180), (8178, 2429780), (8742, 2273020), (8990, 2210316), (10788, 1841930), (10904, 1822335), (11656, 1704765), (11757, 1690120), (13485, 1473544), (13630, 1457868), (14570, 1363812), (15676, 1267590), (16356, 1214890), (17484, 1136510), (17980, 1105158), (19595, 1014072), (20445, 971912), (21576, 920965), (21855, 909208), (23514, 845060), (26970, 736772), (27260, 728934), (29140, 681906), (31352, 633795), (32712, 607445), (34968, 568255), (35960, 552579), (39190, 507036), (40890, 485956), (42253, 470280), (43710, 454604), (47028, 422530), (53940, 368386), (54520, 364467), (58280, 340953), (58785, 338024), (78380, 253518), (81780, 242978), (84506, 235140), (87420, 227302), (94056, 211265), (107880, 184193), (113651, 174840), (117570, 169012), (121489, 163560), (126759, 156760)]