19147440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:84

約数の個数: 240

約数和(自身を含む): 71432928

約数和(自身を除く): 52285488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 19, 20, 24, 26, 30, 34, 38, 39, 40, 48, 51, 52, 57, 60, 65, 68, 76, 78, 80, 85, 95, 102, 104, 114, 120, 130, 136, 152, 156, 170, 190, 195, 204, 208, 221, 228, 240, 247, 255, 260, 272, 285, 304, 312, 323, 340, 361, 380, 390, 408, 442, 456, 494, 510, 520, 570, 624, 646, 663, 680, 722, 741, 760, 780, 816, 884, 912, 969, 988, 1020, 1040, 1083, 1105, 1140, 1235, 1292, 1326, 1360, 1444, 1482, 1520, 1560, 1615, 1768, 1805, 1938, 1976, 2040, 2166, 2210, 2280, 2470, 2584, 2652, 2888, 2964, 3120, 3230, 3315, 3536, 3610, 3705, 3876, 3952, 4080, 4199, 4332, 4420, 4560, 4693, 4845, 4940, 5168, 5304, 5415, 5776, 5928, 6137, 6460, 6630, 7220, 7410, 7752, 8398, 8664, 8840, 9386, 9690, 9880, 10608, 10830, 11856, 12274, 12597, 12920, 13260, 14079, 14440, 14820, 15504, 16796, 17328, 17680, 18411, 18772, 19380, 19760, 20995, 21660, 23465, 24548, 25194, 25840, 26520, 28158, 28880, 29640, 30685, 33592, 36822, 37544, 38760, 41990, 43320, 46930, 49096, 50388, 53040, 56316, 59280, 61370, 62985, 67184, 70395, 73644, 75088, 77520, 79781, 83980, 86640, 92055, 93860, 98192, 100776, 112632, 122740, 125970, 140790, 147288, 159562, 167960, 184110, 187720, 201552, 225264, 239343, 245480, 251940, 281580, 294576, 319124, 335920, 368220, 375440, 398905, 478686, 490960, 503880, 563160, 638248, 736440, 797810, 957372, 1007760, 1126320, 1196715, 1276496, 1472880, 1595620, 1914744, 2393430, 3191240, 3829488, 4786860, 6382480, 9573720, 19147440]

約数ペア:

[(1, 19147440), (2, 9573720), (3, 6382480), (4, 4786860), (5, 3829488), (6, 3191240), (8, 2393430), (10, 1914744), (12, 1595620), (13, 1472880), (15, 1276496), (16, 1196715), (17, 1126320), (19, 1007760), (20, 957372), (24, 797810), (26, 736440), (30, 638248), (34, 563160), (38, 503880), (39, 490960), (40, 478686), (48, 398905), (51, 375440), (52, 368220), (57, 335920), (60, 319124), (65, 294576), (68, 281580), (76, 251940), (78, 245480), (80, 239343), (85, 225264), (95, 201552), (102, 187720), (104, 184110), (114, 167960), (120, 159562), (130, 147288), (136, 140790), (152, 125970), (156, 122740), (170, 112632), (190, 100776), (195, 98192), (204, 93860), (208, 92055), (221, 86640), (228, 83980), (240, 79781), (247, 77520), (255, 75088), (260, 73644), (272, 70395), (285, 67184), (304, 62985), (312, 61370), (323, 59280), (340, 56316), (361, 53040), (380, 50388), (390, 49096), (408, 46930), (442, 43320), (456, 41990), (494, 38760), (510, 37544), (520, 36822), (570, 33592), (624, 30685), (646, 29640), (663, 28880), (680, 28158), (722, 26520), (741, 25840), (760, 25194), (780, 24548), (816, 23465), (884, 21660), (912, 20995), (969, 19760), (988, 19380), (1020, 18772), (1040, 18411), (1083, 17680), (1105, 17328), (1140, 16796), (1235, 15504), (1292, 14820), (1326, 14440), (1360, 14079), (1444, 13260), (1482, 12920), (1520, 12597), (1560, 12274), (1615, 11856), (1768, 10830), (1805, 10608), (1938, 9880), (1976, 9690), (2040, 9386), (2166, 8840), (2210, 8664), (2280, 8398), (2470, 7752), (2584, 7410), (2652, 7220), (2888, 6630), (2964, 6460), (3120, 6137), (3230, 5928), (3315, 5776), (3536, 5415), (3610, 5304), (3705, 5168), (3876, 4940), (3952, 4845), (4080, 4693), (4199, 4560), (4332, 4420)]