1806860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 4257792

約数和(自身を除く): 2450932

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 191, 215, 220, 382, 430, 473, 764, 860, 946, 955, 1892, 1910, 2101, 2365, 3820, 4202, 4730, 8213, 8404, 9460, 10505, 16426, 21010, 32852, 41065, 42020, 82130, 90343, 164260, 180686, 361372, 451715, 903430, 1806860]

約数ペア:

[(1, 1806860), (2, 903430), (4, 451715), (5, 361372), (10, 180686), (11, 164260), (20, 90343), (22, 82130), (43, 42020), (44, 41065), (55, 32852), (86, 21010), (110, 16426), (172, 10505), (191, 9460), (215, 8404), (220, 8213), (382, 4730), (430, 4202), (473, 3820), (764, 2365), (860, 2101), (946, 1910), (955, 1892)]