212901720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2161}}^1$

素因数の和:2996

約数の個数: 64

約数和(自身を含む): 639779040

約数和(自身を除く): 426877320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 821, 1642, 2161, 2463, 3284, 4105, 4322, 4926, 6483, 6568, 8210, 8644, 9852, 10805, 12315, 12966, 16420, 17288, 19704, 21610, 24630, 25932, 32415, 32840, 43220, 49260, 51864, 64830, 86440, 98520, 129660, 259320, 1774181, 3548362, 5322543, 7096724, 8870905, 10645086, 14193448, 17741810, 21290172, 26612715, 35483620, 42580344, 53225430, 70967240, 106450860, 212901720]

約数ペア:

[(1, 212901720), (2, 106450860), (3, 70967240), (4, 53225430), (5, 42580344), (6, 35483620), (8, 26612715), (10, 21290172), (12, 17741810), (15, 14193448), (20, 10645086), (24, 8870905), (30, 7096724), (40, 5322543), (60, 3548362), (120, 1774181), (821, 259320), (1642, 129660), (2161, 98520), (2463, 86440), (3284, 64830), (4105, 51864), (4322, 49260), (4926, 43220), (6483, 32840), (6568, 32415), (8210, 25932), (8644, 24630), (9852, 21610), (10805, 19704), (12315, 17288), (12966, 16420)]