51666825

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{827}}^1$

素因数の和:871

約数の個数: 72

約数和(自身を含む): 105341472

約数和(自身を除く): 53674647

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 49, 51, 75, 85, 105, 119, 147, 175, 245, 255, 357, 425, 525, 595, 735, 827, 833, 1225, 1275, 1785, 2481, 2499, 2975, 3675, 4135, 4165, 5789, 8925, 12405, 12495, 14059, 17367, 20675, 20825, 28945, 40523, 42177, 62025, 62475, 70295, 86835, 98413, 121569, 144725, 202615, 210885, 295239, 351475, 434175, 492065, 607845, 688891, 1013075, 1054425, 1476195, 2066673, 2460325, 3039225, 3444455, 7380975, 10333365, 17222275, 51666825]

約数ペア:

[(1, 51666825), (3, 17222275), (5, 10333365), (7, 7380975), (15, 3444455), (17, 3039225), (21, 2460325), (25, 2066673), (35, 1476195), (49, 1054425), (51, 1013075), (75, 688891), (85, 607845), (105, 492065), (119, 434175), (147, 351475), (175, 295239), (245, 210885), (255, 202615), (357, 144725), (425, 121569), (525, 98413), (595, 86835), (735, 70295), (827, 62475), (833, 62025), (1225, 42177), (1275, 40523), (1785, 28945), (2481, 20825), (2499, 20675), (2975, 17367), (3675, 14059), (4135, 12495), (4165, 12405), (5789, 8925)]