51155920

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3923}}^1$

素因数の和:4099

約数の個数: 40

約数和(自身を含む): 119697696

約数和(自身を除く): 68541776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 3923, 6520, 7846, 13040, 15692, 19615, 31384, 39230, 62768, 78460, 156920, 313840, 639449, 1278898, 2557796, 3197245, 5115592, 6394490, 10231184, 12788980, 25577960, 51155920]

約数ペア:

[(1, 51155920), (2, 25577960), (4, 12788980), (5, 10231184), (8, 6394490), (10, 5115592), (16, 3197245), (20, 2557796), (40, 1278898), (80, 639449), (163, 313840), (326, 156920), (652, 78460), (815, 62768), (1304, 39230), (1630, 31384), (2608, 19615), (3260, 15692), (3923, 13040), (6520, 7846)]