81374200

素因数分解:

$2^3\times 5^2\times {\mathrm{251}}^1\times {\mathrm{1621}}^1$

素因数の和:1888

約数の個数: 48

約数和(自身を含む): 190065960

約数和(自身を除く): 108691760

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 251, 502, 1004, 1255, 1621, 2008, 2510, 3242, 5020, 6275, 6484, 8105, 10040, 12550, 12968, 16210, 25100, 32420, 40525, 50200, 64840, 81050, 162100, 324200, 406871, 813742, 1627484, 2034355, 3254968, 4068710, 8137420, 10171775, 16274840, 20343550, 40687100, 81374200]

約数ペア:

[(1, 81374200), (2, 40687100), (4, 20343550), (5, 16274840), (8, 10171775), (10, 8137420), (20, 4068710), (25, 3254968), (40, 2034355), (50, 1627484), (100, 813742), (200, 406871), (251, 324200), (502, 162100), (1004, 81050), (1255, 64840), (1621, 50200), (2008, 40525), (2510, 32420), (3242, 25100), (5020, 16210), (6275, 12968), (6484, 12550), (8105, 10040)]