144849640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{278557}}^1$

素因数の和:278581

約数の個数: 32

約数和(自身を含む): 350983080

約数和(自身を除く): 206133440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 278557, 557114, 1114228, 1392785, 2228456, 2785570, 3621241, 5571140, 7242482, 11142280, 14484964, 18106205, 28969928, 36212410, 72424820, 144849640]

約数ペア:

[(1, 144849640), (2, 72424820), (4, 36212410), (5, 28969928), (8, 18106205), (10, 14484964), (13, 11142280), (20, 7242482), (26, 5571140), (40, 3621241), (52, 2785570), (65, 2228456), (104, 1392785), (130, 1114228), (260, 557114), (520, 278557)]