1320779985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{177167}}^1$

素因数の和:177253

約数の個数: 32

約数和(自身を含む): 2449170432

約数和(自身を除く): 1128390447

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 7455, 177167, 531501, 885835, 1240169, 2657505, 3720507, 6200845, 12578857, 18602535, 37736571, 62894285, 88051999, 188682855, 264155997, 440259995, 1320779985]

約数ペア:

[(1, 1320779985), (3, 440259995), (5, 264155997), (7, 188682855), (15, 88051999), (21, 62894285), (35, 37736571), (71, 18602535), (105, 12578857), (213, 6200845), (355, 3720507), (497, 2657505), (1065, 1240169), (1491, 885835), (2485, 531501), (7455, 177167)]