18591940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 40771584

約数和(自身を除く): 22179644

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 157, 191, 310, 314, 382, 620, 628, 764, 785, 955, 1570, 1910, 3140, 3820, 4867, 5921, 9734, 11842, 19468, 23684, 24335, 29605, 29987, 48670, 59210, 59974, 97340, 118420, 119948, 149935, 299870, 599740, 929597, 1859194, 3718388, 4647985, 9295970, 18591940]

約数ペア:

[(1, 18591940), (2, 9295970), (4, 4647985), (5, 3718388), (10, 1859194), (20, 929597), (31, 599740), (62, 299870), (124, 149935), (155, 119948), (157, 118420), (191, 97340), (310, 59974), (314, 59210), (382, 48670), (620, 29987), (628, 29605), (764, 24335), (785, 23684), (955, 19468), (1570, 11842), (1910, 9734), (3140, 5921), (3820, 4867)]