20662321810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{138571}}^1$

素因数の和:138659

約数の個数: 64

約数和(自身を含む): 42462895104

約数和(自身を除く): 21800573294

約数列:

[1, 2, 5, 10, 13, 26, 31, 37, 62, 65, 74, 130, 155, 185, 310, 370, 403, 481, 806, 962, 1147, 2015, 2294, 2405, 4030, 4810, 5735, 11470, 14911, 29822, 74555, 138571, 149110, 277142, 692855, 1385710, 1801423, 3602846, 4295701, 5127127, 8591402, 9007115, 10254254, 18014230, 21478505, 25635635, 42957010, 51271270, 55844113, 66652651, 111688226, 133305302, 158940937, 279220565, 317881874, 333263255, 558441130, 666526510, 794704685, 1589409370, 2066232181, 4132464362, 10331160905, 20662321810]

約数ペア:

[(1, 20662321810), (2, 10331160905), (5, 4132464362), (10, 2066232181), (13, 1589409370), (26, 794704685), (31, 666526510), (37, 558441130), (62, 333263255), (65, 317881874), (74, 279220565), (130, 158940937), (155, 133305302), (185, 111688226), (310, 66652651), (370, 55844113), (403, 51271270), (481, 42957010), (806, 25635635), (962, 21478505), (1147, 18014230), (2015, 10254254), (2294, 9007115), (2405, 8591402), (4030, 5127127), (4810, 4295701), (5735, 3602846), (11470, 1801423), (14911, 1385710), (29822, 692855), (74555, 277142), (138571, 149110)]