81077800

素因数分解:

$2^3\times 5^2\times {\mathrm{59}}^1\times {\mathrm{6871}}^1$

素因数の和:6946

約数の個数: 48

約数和(自身を含む): 191728800

約数和(自身を除く): 110651000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 59, 100, 118, 200, 236, 295, 472, 590, 1180, 1475, 2360, 2950, 5900, 6871, 11800, 13742, 27484, 34355, 54968, 68710, 137420, 171775, 274840, 343550, 405389, 687100, 810778, 1374200, 1621556, 2026945, 3243112, 4053890, 8107780, 10134725, 16215560, 20269450, 40538900, 81077800]

約数ペア:

[(1, 81077800), (2, 40538900), (4, 20269450), (5, 16215560), (8, 10134725), (10, 8107780), (20, 4053890), (25, 3243112), (40, 2026945), (50, 1621556), (59, 1374200), (100, 810778), (118, 687100), (200, 405389), (236, 343550), (295, 274840), (472, 171775), (590, 137420), (1180, 68710), (1475, 54968), (2360, 34355), (2950, 27484), (5900, 13742), (6871, 11800)]