123357780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1$

素因数の和:495

約数の個数: 288

約数和(自身を含む): 488726784

約数和(自身を除く): 365369004

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 17, 18, 20, 21, 26, 28, 30, 34, 35, 36, 39, 42, 45, 51, 52, 60, 63, 65, 68, 70, 78, 84, 85, 90, 91, 102, 105, 117, 119, 126, 130, 140, 153, 156, 170, 180, 182, 195, 204, 210, 221, 234, 238, 252, 255, 260, 273, 306, 315, 340, 357, 364, 390, 420, 442, 443, 455, 468, 476, 510, 546, 585, 595, 612, 630, 663, 714, 765, 780, 819, 884, 886, 910, 1020, 1071, 1092, 1105, 1170, 1190, 1260, 1326, 1329, 1365, 1428, 1530, 1547, 1638, 1772, 1785, 1820, 1989, 2142, 2210, 2215, 2340, 2380, 2652, 2658, 2730, 3060, 3094, 3101, 3276, 3315, 3570, 3978, 3987, 4095, 4284, 4420, 4430, 4641, 5316, 5355, 5460, 5759, 6188, 6202, 6630, 6645, 7140, 7531, 7735, 7956, 7974, 8190, 8860, 9282, 9303, 9945, 10710, 11518, 12404, 13260, 13290, 13923, 15062, 15470, 15505, 15948, 16380, 17277, 18564, 18606, 19890, 19935, 21420, 22593, 23036, 23205, 26580, 27846, 27909, 28795, 30124, 30940, 31010, 34554, 37212, 37655, 39780, 39870, 40313, 45186, 46410, 46515, 51831, 52717, 55692, 55818, 57590, 62020, 67779, 69108, 69615, 75310, 79740, 80626, 86385, 90372, 92820, 93030, 97903, 103662, 105434, 111636, 112965, 115180, 120939, 135558, 139230, 139545, 150620, 158151, 161252, 172770, 186060, 195806, 201565, 207324, 210868, 225930, 241878, 259155, 263585, 271116, 278460, 279090, 293709, 316302, 338895, 345540, 362817, 391612, 403130, 451860, 474453, 483756, 489515, 518310, 527170, 558180, 587418, 604695, 632604, 677790, 685321, 725634, 790755, 806260, 881127, 948906, 979030, 1036620, 1054340, 1174836, 1209390, 1355580, 1370642, 1451268, 1468545, 1581510, 1762254, 1814085, 1897812, 1958060, 2055963, 2372265, 2418780, 2741284, 2937090, 3163020, 3426605, 3524508, 3628170, 4111926, 4405635, 4744530, 5874180, 6167889, 6853210, 7256340, 8223852, 8811270, 9489060, 10279815, 12335778, 13706420, 17622540, 20559630, 24671556, 30839445, 41119260, 61678890, 123357780]

約数ペア:

[(1, 123357780), (2, 61678890), (3, 41119260), (4, 30839445), (5, 24671556), (6, 20559630), (7, 17622540), (9, 13706420), (10, 12335778), (12, 10279815), (13, 9489060), (14, 8811270), (15, 8223852), (17, 7256340), (18, 6853210), (20, 6167889), (21, 5874180), (26, 4744530), (28, 4405635), (30, 4111926), (34, 3628170), (35, 3524508), (36, 3426605), (39, 3163020), (42, 2937090), (45, 2741284), (51, 2418780), (52, 2372265), (60, 2055963), (63, 1958060), (65, 1897812), (68, 1814085), (70, 1762254), (78, 1581510), (84, 1468545), (85, 1451268), (90, 1370642), (91, 1355580), (102, 1209390), (105, 1174836), (117, 1054340), (119, 1036620), (126, 979030), (130, 948906), (140, 881127), (153, 806260), (156, 790755), (170, 725634), (180, 685321), (182, 677790), (195, 632604), (204, 604695), (210, 587418), (221, 558180), (234, 527170), (238, 518310), (252, 489515), (255, 483756), (260, 474453), (273, 451860), (306, 403130), (315, 391612), (340, 362817), (357, 345540), (364, 338895), (390, 316302), (420, 293709), (442, 279090), (443, 278460), (455, 271116), (468, 263585), (476, 259155), (510, 241878), (546, 225930), (585, 210868), (595, 207324), (612, 201565), (630, 195806), (663, 186060), (714, 172770), (765, 161252), (780, 158151), (819, 150620), (884, 139545), (886, 139230), (910, 135558), (1020, 120939), (1071, 115180), (1092, 112965), (1105, 111636), (1170, 105434), (1190, 103662), (1260, 97903), (1326, 93030), (1329, 92820), (1365, 90372), (1428, 86385), (1530, 80626), (1547, 79740), (1638, 75310), (1772, 69615), (1785, 69108), (1820, 67779), (1989, 62020), (2142, 57590), (2210, 55818), (2215, 55692), (2340, 52717), (2380, 51831), (2652, 46515), (2658, 46410), (2730, 45186), (3060, 40313), (3094, 39870), (3101, 39780), (3276, 37655), (3315, 37212), (3570, 34554), (3978, 31010), (3987, 30940), (4095, 30124), (4284, 28795), (4420, 27909), (4430, 27846), (4641, 26580), (5316, 23205), (5355, 23036), (5460, 22593), (5759, 21420), (6188, 19935), (6202, 19890), (6630, 18606), (6645, 18564), (7140, 17277), (7531, 16380), (7735, 15948), (7956, 15505), (7974, 15470), (8190, 15062), (8860, 13923), (9282, 13290), (9303, 13260), (9945, 12404), (10710, 11518)]