20176064675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1\times {\mathrm{997}}^1$

素因数の和:1968

約数の個数: 48

約数和(自身を含む): 27380872512

約数和(自身を除く): 7204807837

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 877, 923, 997, 1775, 4385, 4615, 4985, 11401, 12961, 21925, 23075, 24925, 57005, 62267, 64805, 70787, 285025, 311335, 324025, 353935, 809471, 874369, 920231, 1556675, 1769675, 4047355, 4371845, 4601155, 11366797, 20236775, 21859225, 23005775, 56833985, 62080199, 284169925, 310400995, 807042587, 1552004975, 4035212935, 20176064675]

約数ペア:

[(1, 20176064675), (5, 4035212935), (13, 1552004975), (25, 807042587), (65, 310400995), (71, 284169925), (325, 62080199), (355, 56833985), (877, 23005775), (923, 21859225), (997, 20236775), (1775, 11366797), (4385, 4601155), (4615, 4371845), (4985, 4047355), (11401, 1769675), (12961, 1556675), (21925, 920231), (23075, 874369), (24925, 809471), (57005, 353935), (62267, 324025), (64805, 311335), (70787, 285025)]