81713090

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1\times {\mathrm{317}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 149396400

約数和(自身を除く): 67683310

約数列:

[1, 2, 5, 10, 149, 173, 298, 317, 346, 634, 745, 865, 1490, 1585, 1730, 3170, 25777, 47233, 51554, 54841, 94466, 109682, 128885, 236165, 257770, 274205, 472330, 548410, 8171309, 16342618, 40856545, 81713090]

約数ペア:

[(1, 81713090), (2, 40856545), (5, 16342618), (10, 8171309), (149, 548410), (173, 472330), (298, 274205), (317, 257770), (346, 236165), (634, 128885), (745, 109682), (865, 94466), (1490, 54841), (1585, 51554), (1730, 47233), (3170, 25777)]