8638040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12703}}^1$

素因数の和:12731

約数の個数: 32

約数和(自身を含む): 20580480

約数和(自身を除く): 11942440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 12703, 25406, 50812, 63515, 101624, 127030, 215951, 254060, 431902, 508120, 863804, 1079755, 1727608, 2159510, 4319020, 8638040]

約数ペア:

[(1, 8638040), (2, 4319020), (4, 2159510), (5, 1727608), (8, 1079755), (10, 863804), (17, 508120), (20, 431902), (34, 254060), (40, 215951), (68, 127030), (85, 101624), (136, 63515), (170, 50812), (340, 25406), (680, 12703)]