90130520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{60899}}^1$

素因数の和:60947

約数の個数: 32

約数和(自身を含む): 208278000

約数和(自身を除く): 118147480

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 60899, 121798, 243596, 304495, 487192, 608990, 1217980, 2253263, 2435960, 4506526, 9013052, 11266315, 18026104, 22532630, 45065260, 90130520]

約数ペア:

[(1, 90130520), (2, 45065260), (4, 22532630), (5, 18026104), (8, 11266315), (10, 9013052), (20, 4506526), (37, 2435960), (40, 2253263), (74, 1217980), (148, 608990), (185, 487192), (296, 304495), (370, 243596), (740, 121798), (1480, 60899)]