421781030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{9857}}^1$

素因数の和:10264

約数の個数: 32

約数和(自身を含む): 830437920

約数和(自身を除く): 408656890

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 389, 778, 1945, 3890, 4279, 8558, 9857, 19714, 21395, 42790, 49285, 98570, 108427, 216854, 542135, 1084270, 3834373, 7668746, 19171865, 38343730, 42178103, 84356206, 210890515, 421781030]

約数ペア:

[(1, 421781030), (2, 210890515), (5, 84356206), (10, 42178103), (11, 38343730), (22, 19171865), (55, 7668746), (110, 3834373), (389, 1084270), (778, 542135), (1945, 216854), (3890, 108427), (4279, 98570), (8558, 49285), (9857, 42790), (19714, 21395)]