20182910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 43110144

約数和(自身を除く): 22927234

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 43, 55, 85, 86, 110, 170, 187, 215, 251, 374, 430, 473, 502, 731, 935, 946, 1255, 1462, 1870, 2365, 2510, 2761, 3655, 4267, 4730, 5522, 7310, 8041, 8534, 10793, 13805, 16082, 21335, 21586, 27610, 40205, 42670, 46937, 53965, 80410, 93874, 107930, 118723, 183481, 234685, 237446, 366962, 469370, 593615, 917405, 1187230, 1834810, 2018291, 4036582, 10091455, 20182910]

約数ペア:

[(1, 20182910), (2, 10091455), (5, 4036582), (10, 2018291), (11, 1834810), (17, 1187230), (22, 917405), (34, 593615), (43, 469370), (55, 366962), (85, 237446), (86, 234685), (110, 183481), (170, 118723), (187, 107930), (215, 93874), (251, 80410), (374, 53965), (430, 46937), (473, 42670), (502, 40205), (731, 27610), (935, 21586), (946, 21335), (1255, 16082), (1462, 13805), (1870, 10793), (2365, 8534), (2510, 8041), (2761, 7310), (3655, 5522), (4267, 4730)]