138578390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{47951}}^1$

素因数の和:47992

約数の個数: 24

約数和(自身を含む): 264982752

約数和(自身を除く): 126404362

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 47951, 95902, 239755, 479510, 815167, 1630334, 4075835, 8151670, 13857839, 27715678, 69289195, 138578390]

約数ペア:

[(1, 138578390), (2, 69289195), (5, 27715678), (10, 13857839), (17, 8151670), (34, 4075835), (85, 1630334), (170, 815167), (289, 479510), (578, 239755), (1445, 95902), (2890, 47951)]