220392620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{19927}}^1$

素因数の和:20022

約数の個数: 48

約数和(自身を含む): 535664640

約数和(自身を除く): 315272020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2765, 5530, 11060, 19927, 39854, 79708, 99635, 139489, 199270, 278978, 398540, 557956, 697445, 1394890, 1574233, 2789780, 3148466, 6296932, 7871165, 11019631, 15742330, 22039262, 31484660, 44078524, 55098155, 110196310, 220392620]

約数ペア:

[(1, 220392620), (2, 110196310), (4, 55098155), (5, 44078524), (7, 31484660), (10, 22039262), (14, 15742330), (20, 11019631), (28, 7871165), (35, 6296932), (70, 3148466), (79, 2789780), (140, 1574233), (158, 1394890), (316, 697445), (395, 557956), (553, 398540), (790, 278978), (1106, 199270), (1580, 139489), (2212, 99635), (2765, 79708), (5530, 39854), (11060, 19927)]