20773890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3251}}^1$

素因数の和:3335

約数の個数: 48

約数和(自身を含む): 54789696

約数和(自身を除く): 34015806

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 3251, 6390, 6502, 9753, 16255, 19506, 29259, 32510, 48765, 58518, 97530, 146295, 230821, 292590, 461642, 692463, 1154105, 1384926, 2077389, 2308210, 3462315, 4154778, 6924630, 10386945, 20773890]

約数ペア:

[(1, 20773890), (2, 10386945), (3, 6924630), (5, 4154778), (6, 3462315), (9, 2308210), (10, 2077389), (15, 1384926), (18, 1154105), (30, 692463), (45, 461642), (71, 292590), (90, 230821), (142, 146295), (213, 97530), (355, 58518), (426, 48765), (639, 32510), (710, 29259), (1065, 19506), (1278, 16255), (2130, 9753), (3195, 6502), (3251, 6390)]