890978870

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{32987}}^1$

素因数の和:33104

約数の個数: 32

約数和(自身を含む): 1669720608

約数和(自身を除く): 778741738

約数列:

[1, 2, 5, 10, 37, 73, 74, 146, 185, 365, 370, 730, 2701, 5402, 13505, 27010, 32987, 65974, 164935, 329870, 1220519, 2408051, 2441038, 4816102, 6102595, 12040255, 12205190, 24080510, 89097887, 178195774, 445489435, 890978870]

約数ペア:

[(1, 890978870), (2, 445489435), (5, 178195774), (10, 89097887), (37, 24080510), (73, 12205190), (74, 12040255), (146, 6102595), (185, 4816102), (365, 2441038), (370, 2408051), (730, 1220519), (2701, 329870), (5402, 164935), (13505, 65974), (27010, 32987)]