400689105

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{21017}}^1$

素因数の和:21097

約数の個数: 32

約数和(自身を含む): 677956608

約数和(自身を除く): 277267503

約数列:

[1, 3, 5, 15, 31, 41, 93, 123, 155, 205, 465, 615, 1271, 3813, 6355, 19065, 21017, 63051, 105085, 315255, 651527, 861697, 1954581, 2585091, 3257635, 4308485, 9772905, 12925455, 26712607, 80137821, 133563035, 400689105]

約数ペア:

[(1, 400689105), (3, 133563035), (5, 80137821), (15, 26712607), (31, 12925455), (41, 9772905), (93, 4308485), (123, 3257635), (155, 2585091), (205, 1954581), (465, 861697), (615, 651527), (1271, 315255), (3813, 105085), (6355, 63051), (19065, 21017)]