129173780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{8291}}^1$

素因数の和:8360

約数の個数: 48

約数和(自身を含む): 292541760

約数和(自身を除く): 163367980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 8291, 15580, 16582, 33164, 41455, 82910, 157529, 165820, 315058, 339931, 630116, 679862, 787645, 1359724, 1575290, 1699655, 3150580, 3399310, 6458689, 6798620, 12917378, 25834756, 32293445, 64586890, 129173780]

約数ペア:

[(1, 129173780), (2, 64586890), (4, 32293445), (5, 25834756), (10, 12917378), (19, 6798620), (20, 6458689), (38, 3399310), (41, 3150580), (76, 1699655), (82, 1575290), (95, 1359724), (164, 787645), (190, 679862), (205, 630116), (380, 339931), (410, 315058), (779, 165820), (820, 157529), (1558, 82910), (3116, 41455), (3895, 33164), (7790, 16582), (8291, 15580)]