18914060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{577}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 43696800

約数和(自身を除く): 24782740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 577, 596, 745, 1154, 1490, 1639, 2308, 2885, 2980, 3278, 5770, 6347, 6556, 8195, 11540, 12694, 16390, 25388, 31735, 32780, 63470, 85973, 126940, 171946, 343892, 429865, 859730, 945703, 1719460, 1891406, 3782812, 4728515, 9457030, 18914060]

約数ペア:

[(1, 18914060), (2, 9457030), (4, 4728515), (5, 3782812), (10, 1891406), (11, 1719460), (20, 945703), (22, 859730), (44, 429865), (55, 343892), (110, 171946), (149, 126940), (220, 85973), (298, 63470), (577, 32780), (596, 31735), (745, 25388), (1154, 16390), (1490, 12694), (1639, 11540), (2308, 8195), (2885, 6556), (2980, 6347), (3278, 5770)]