139349840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{248839}}^1$

素因数の和:248859

約数の個数: 40

約数和(自身を含む): 370273920

約数和(自身を除く): 230924080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 248839, 497678, 995356, 1244195, 1741873, 1990712, 2488390, 3483746, 3981424, 4976780, 6967492, 8709365, 9953560, 13934984, 17418730, 19907120, 27869968, 34837460, 69674920, 139349840]

約数ペア:

[(1, 139349840), (2, 69674920), (4, 34837460), (5, 27869968), (7, 19907120), (8, 17418730), (10, 13934984), (14, 9953560), (16, 8709365), (20, 6967492), (28, 4976780), (35, 3981424), (40, 3483746), (56, 2488390), (70, 1990712), (80, 1741873), (112, 1244195), (140, 995356), (280, 497678), (560, 248839)]