31454930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 66261888

約数和(自身を除く): 34806958

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 43, 65, 85, 86, 130, 170, 215, 221, 331, 430, 442, 559, 662, 731, 1105, 1118, 1462, 1655, 2210, 2795, 3310, 3655, 4303, 5590, 5627, 7310, 8606, 9503, 11254, 14233, 19006, 21515, 28135, 28466, 43030, 47515, 56270, 71165, 73151, 95030, 142330, 146302, 185029, 241961, 365755, 370058, 483922, 731510, 925145, 1209805, 1850290, 2419610, 3145493, 6290986, 15727465, 31454930]

約数ペア:

[(1, 31454930), (2, 15727465), (5, 6290986), (10, 3145493), (13, 2419610), (17, 1850290), (26, 1209805), (34, 925145), (43, 731510), (65, 483922), (85, 370058), (86, 365755), (130, 241961), (170, 185029), (215, 146302), (221, 142330), (331, 95030), (430, 73151), (442, 71165), (559, 56270), (662, 47515), (731, 43030), (1105, 28466), (1118, 28135), (1462, 21515), (1655, 19006), (2210, 14233), (2795, 11254), (3310, 9503), (3655, 8606), (4303, 7310), (5590, 5627)]