139905790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{451309}}^1$

素因数の和:451347

約数の個数: 16

約数和(自身を含む): 259954560

約数和(自身を除く): 120048770

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 451309, 902618, 2256545, 4513090, 13990579, 27981158, 69952895, 139905790]

約数ペア:

[(1, 139905790), (2, 69952895), (5, 27981158), (10, 13990579), (31, 4513090), (62, 2256545), (155, 902618), (310, 451309)]