420704020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{4259}}^1$

素因数の和:4728

約数の個数: 48

約数和(自身を含む): 966168000

約数和(自身を除く): 545463980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 449, 898, 1796, 2245, 4259, 4490, 4939, 8518, 8980, 9878, 17036, 19756, 21295, 24695, 42590, 46849, 49390, 85180, 93698, 98780, 187396, 234245, 468490, 936980, 1912291, 3824582, 7649164, 9561455, 19122910, 21035201, 38245820, 42070402, 84140804, 105176005, 210352010, 420704020]

約数ペア:

[(1, 420704020), (2, 210352010), (4, 105176005), (5, 84140804), (10, 42070402), (11, 38245820), (20, 21035201), (22, 19122910), (44, 9561455), (55, 7649164), (110, 3824582), (220, 1912291), (449, 936980), (898, 468490), (1796, 234245), (2245, 187396), (4259, 98780), (4490, 93698), (4939, 85180), (8518, 49390), (8980, 46849), (9878, 42590), (17036, 24695), (19756, 21295)]