156716840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{559703}}^1$

素因数の和:559721

約数の個数: 32

約数和(自身を含む): 402986880

約数和(自身を除く): 246270040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 559703, 1119406, 2238812, 2798515, 3917921, 4477624, 5597030, 7835842, 11194060, 15671684, 19589605, 22388120, 31343368, 39179210, 78358420, 156716840]

約数ペア:

[(1, 156716840), (2, 78358420), (4, 39179210), (5, 31343368), (7, 22388120), (8, 19589605), (10, 15671684), (14, 11194060), (20, 7835842), (28, 5597030), (35, 4477624), (40, 3917921), (56, 2798515), (70, 2238812), (140, 1119406), (280, 559703)]