212901440

素因数分解:

$2^6\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1277}}^1$

素因数の和:1815

約数の個数: 56

約数和(自身を含む): 508342392

約数和(自身を除く): 295440952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 521, 1042, 1277, 2084, 2554, 2605, 4168, 5108, 5210, 6385, 8336, 10216, 10420, 12770, 16672, 20432, 20840, 25540, 33344, 40864, 41680, 51080, 81728, 83360, 102160, 166720, 204320, 408640, 665317, 1330634, 2661268, 3326585, 5322536, 6653170, 10645072, 13306340, 21290144, 26612680, 42580288, 53225360, 106450720, 212901440]

約数ペア:

[(1, 212901440), (2, 106450720), (4, 53225360), (5, 42580288), (8, 26612680), (10, 21290144), (16, 13306340), (20, 10645072), (32, 6653170), (40, 5322536), (64, 3326585), (80, 2661268), (160, 1330634), (320, 665317), (521, 408640), (1042, 204320), (1277, 166720), (2084, 102160), (2554, 83360), (2605, 81728), (4168, 51080), (5108, 41680), (5210, 40864), (6385, 33344), (8336, 25540), (10216, 20840), (10420, 20432), (12770, 16672)]