20455530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 51055488

約数和(自身を除く): 30599958

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 101, 129, 157, 202, 215, 258, 303, 314, 430, 471, 505, 606, 645, 785, 942, 1010, 1290, 1515, 1570, 2355, 3030, 4343, 4710, 6751, 8686, 13029, 13502, 15857, 20253, 21715, 26058, 31714, 33755, 40506, 43430, 47571, 65145, 67510, 79285, 95142, 101265, 130290, 158570, 202530, 237855, 475710, 681851, 1363702, 2045553, 3409255, 4091106, 6818510, 10227765, 20455530]

約数ペア:

[(1, 20455530), (2, 10227765), (3, 6818510), (5, 4091106), (6, 3409255), (10, 2045553), (15, 1363702), (30, 681851), (43, 475710), (86, 237855), (101, 202530), (129, 158570), (157, 130290), (202, 101265), (215, 95142), (258, 79285), (303, 67510), (314, 65145), (430, 47571), (471, 43430), (505, 40506), (606, 33755), (645, 31714), (785, 26058), (942, 21715), (1010, 20253), (1290, 15857), (1515, 13502), (1570, 13029), (2355, 8686), (3030, 6751), (4343, 4710)]