420783550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:634

約数の個数: 72

約数和(自身を含む): 867710088

約数和(自身を除く): 446926538

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 157, 242, 275, 314, 443, 550, 605, 785, 886, 1210, 1570, 1727, 2215, 3025, 3454, 3925, 4430, 4873, 6050, 7850, 8635, 9746, 11075, 17270, 18997, 22150, 24365, 37994, 43175, 48730, 53603, 69551, 86350, 94985, 107206, 121825, 139102, 189970, 243650, 268015, 347755, 474925, 536030, 695510, 765061, 949850, 1340075, 1530122, 1738775, 2680150, 3477550, 3825305, 7650610, 8415671, 16831342, 19126525, 38253050, 42078355, 84156710, 210391775, 420783550]

約数ペア:

[(1, 420783550), (2, 210391775), (5, 84156710), (10, 42078355), (11, 38253050), (22, 19126525), (25, 16831342), (50, 8415671), (55, 7650610), (110, 3825305), (121, 3477550), (157, 2680150), (242, 1738775), (275, 1530122), (314, 1340075), (443, 949850), (550, 765061), (605, 695510), (785, 536030), (886, 474925), (1210, 347755), (1570, 268015), (1727, 243650), (2215, 189970), (3025, 139102), (3454, 121825), (3925, 107206), (4430, 94985), (4873, 86350), (6050, 69551), (7850, 53603), (8635, 48730), (9746, 43175), (11075, 37994), (17270, 24365), (18997, 22150)]