51156520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31193}}^1$

素因数の和:31245

約数の個数: 32

約数和(自身を含む): 117913320

約数和(自身を除く): 66756800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 31193, 62386, 124772, 155965, 249544, 311930, 623860, 1247720, 1278913, 2557826, 5115652, 6394565, 10231304, 12789130, 25578260, 51156520]

約数ペア:

[(1, 51156520), (2, 25578260), (4, 12789130), (5, 10231304), (8, 6394565), (10, 5115652), (20, 2557826), (40, 1278913), (41, 1247720), (82, 623860), (164, 311930), (205, 249544), (328, 155965), (410, 124772), (820, 62386), (1640, 31193)]