138936920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{204319}}^1$

素因数の和:204347

約数の個数: 32

約数和(自身を含む): 330998400

約数和(自身を除く): 192061480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 204319, 408638, 817276, 1021595, 1634552, 2043190, 3473423, 4086380, 6946846, 8172760, 13893692, 17367115, 27787384, 34734230, 69468460, 138936920]

約数ペア:

[(1, 138936920), (2, 69468460), (4, 34734230), (5, 27787384), (8, 17367115), (10, 13893692), (17, 8172760), (20, 6946846), (34, 4086380), (40, 3473423), (68, 2043190), (85, 1634552), (136, 1021595), (170, 817276), (340, 408638), (680, 204319)]