20775120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{809}}^1$

素因数の和:932

約数の個数: 80

約数和(自身を含む): 65085120

約数和(自身を除く): 44310000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 107, 120, 214, 240, 321, 428, 535, 642, 809, 856, 1070, 1284, 1605, 1618, 1712, 2140, 2427, 2568, 3210, 3236, 4045, 4280, 4854, 5136, 6420, 6472, 8090, 8560, 9708, 12135, 12840, 12944, 16180, 19416, 24270, 25680, 32360, 38832, 48540, 64720, 86563, 97080, 173126, 194160, 259689, 346252, 432815, 519378, 692504, 865630, 1038756, 1298445, 1385008, 1731260, 2077512, 2596890, 3462520, 4155024, 5193780, 6925040, 10387560, 20775120]

約数ペア:

[(1, 20775120), (2, 10387560), (3, 6925040), (4, 5193780), (5, 4155024), (6, 3462520), (8, 2596890), (10, 2077512), (12, 1731260), (15, 1385008), (16, 1298445), (20, 1038756), (24, 865630), (30, 692504), (40, 519378), (48, 432815), (60, 346252), (80, 259689), (107, 194160), (120, 173126), (214, 97080), (240, 86563), (321, 64720), (428, 48540), (535, 38832), (642, 32360), (809, 25680), (856, 24270), (1070, 19416), (1284, 16180), (1605, 12944), (1618, 12840), (1712, 12135), (2140, 9708), (2427, 8560), (2568, 8090), (3210, 6472), (3236, 6420), (4045, 5136), (4280, 4854)]