12420380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1123}}^1$

素因数の和:1218

約数の個数: 48

約数和(自身を含む): 30213120

約数和(自身を除く): 17792740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1123, 1580, 2212, 2246, 2765, 4492, 5530, 5615, 7861, 11060, 11230, 15722, 22460, 31444, 39305, 78610, 88717, 157220, 177434, 354868, 443585, 621019, 887170, 1242038, 1774340, 2484076, 3105095, 6210190, 12420380]

約数ペア:

[(1, 12420380), (2, 6210190), (4, 3105095), (5, 2484076), (7, 1774340), (10, 1242038), (14, 887170), (20, 621019), (28, 443585), (35, 354868), (70, 177434), (79, 157220), (140, 88717), (158, 78610), (316, 39305), (395, 31444), (553, 22460), (790, 15722), (1106, 11230), (1123, 11060), (1580, 7861), (2212, 5615), (2246, 5530), (2765, 4492)]