12708220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2111}}^1$

素因数の和:2170

約数の個数: 48

約数和(自身を含む): 31223808

約数和(自身を除く): 18515588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 2111, 3010, 4222, 6020, 8444, 10555, 14777, 21110, 29554, 42220, 59108, 73885, 90773, 147770, 181546, 295540, 363092, 453865, 635411, 907730, 1270822, 1815460, 2541644, 3177055, 6354110, 12708220]

約数ペア:

[(1, 12708220), (2, 6354110), (4, 3177055), (5, 2541644), (7, 1815460), (10, 1270822), (14, 907730), (20, 635411), (28, 453865), (35, 363092), (43, 295540), (70, 181546), (86, 147770), (140, 90773), (172, 73885), (215, 59108), (301, 42220), (430, 29554), (602, 21110), (860, 14777), (1204, 10555), (1505, 8444), (2111, 6020), (3010, 4222)]