181819480

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2857}}^1$

素因数の和:2948

約数の個数: 64

約数和(自身を含む): 430071840

約数和(自身を除く): 248252360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 43, 74, 86, 148, 172, 185, 215, 296, 344, 370, 430, 740, 860, 1480, 1591, 1720, 2857, 3182, 5714, 6364, 7955, 11428, 12728, 14285, 15910, 22856, 28570, 31820, 57140, 63640, 105709, 114280, 122851, 211418, 245702, 422836, 491404, 528545, 614255, 845672, 982808, 1057090, 1228510, 2114180, 2457020, 4228360, 4545487, 4914040, 9090974, 18181948, 22727435, 36363896, 45454870, 90909740, 181819480]

約数ペア:

[(1, 181819480), (2, 90909740), (4, 45454870), (5, 36363896), (8, 22727435), (10, 18181948), (20, 9090974), (37, 4914040), (40, 4545487), (43, 4228360), (74, 2457020), (86, 2114180), (148, 1228510), (172, 1057090), (185, 982808), (215, 845672), (296, 614255), (344, 528545), (370, 491404), (430, 422836), (740, 245702), (860, 211418), (1480, 122851), (1591, 114280), (1720, 105709), (2857, 63640), (3182, 57140), (5714, 31820), (6364, 28570), (7955, 22856), (11428, 15910), (12728, 14285)]