218156680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{779131}}^1$

素因数の和:779149

約数の個数: 32

約数和(自身を含む): 560975040

約数和(自身を除く): 342818360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 779131, 1558262, 3116524, 3895655, 5453917, 6233048, 7791310, 10907834, 15582620, 21815668, 27269585, 31165240, 43631336, 54539170, 109078340, 218156680]

約数ペア:

[(1, 218156680), (2, 109078340), (4, 54539170), (5, 43631336), (7, 31165240), (8, 27269585), (10, 21815668), (14, 15582620), (20, 10907834), (28, 7791310), (35, 6233048), (40, 5453917), (56, 3895655), (70, 3116524), (140, 1558262), (280, 779131)]