389654810

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1\times {\mathrm{1531}}^1$

素因数の和:2390

約数の個数: 32

約数和(自身を含む): 725359104

約数和(自身を除く): 335704294

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 821, 1531, 1642, 3062, 4105, 7655, 8210, 15310, 25451, 47461, 50902, 94922, 127255, 237305, 254510, 474610, 1256951, 2513902, 6284755, 12569510, 38965481, 77930962, 194827405, 389654810]

約数ペア:

[(1, 389654810), (2, 194827405), (5, 77930962), (10, 38965481), (31, 12569510), (62, 6284755), (155, 2513902), (310, 1256951), (821, 474610), (1531, 254510), (1642, 237305), (3062, 127255), (4105, 94922), (7655, 50902), (8210, 47461), (15310, 25451)]