18384740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 43436736

約数和(自身を除く): 25051996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 107, 110, 121, 142, 214, 220, 242, 284, 355, 428, 484, 535, 605, 710, 781, 1070, 1177, 1210, 1420, 1562, 2140, 2354, 2420, 3124, 3905, 4708, 5885, 7597, 7810, 8591, 11770, 12947, 15194, 15620, 17182, 23540, 25894, 30388, 34364, 37985, 42955, 51788, 64735, 75970, 83567, 85910, 129470, 151940, 167134, 171820, 258940, 334268, 417835, 835670, 919237, 1671340, 1838474, 3676948, 4596185, 9192370, 18384740]

約数ペア:

[(1, 18384740), (2, 9192370), (4, 4596185), (5, 3676948), (10, 1838474), (11, 1671340), (20, 919237), (22, 835670), (44, 417835), (55, 334268), (71, 258940), (107, 171820), (110, 167134), (121, 151940), (142, 129470), (214, 85910), (220, 83567), (242, 75970), (284, 64735), (355, 51788), (428, 42955), (484, 37985), (535, 34364), (605, 30388), (710, 25894), (781, 23540), (1070, 17182), (1177, 15620), (1210, 15194), (1420, 12947), (1562, 11770), (2140, 8591), (2354, 7810), (2420, 7597), (3124, 5885), (3905, 4708)]