17990220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{683}}^1$

素因数の和:1134

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 32571060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 439, 683, 878, 1317, 1366, 1756, 2049, 2195, 2634, 2732, 3415, 4098, 4390, 5268, 6585, 6830, 8196, 8780, 10245, 13170, 13660, 20490, 26340, 40980, 299837, 599674, 899511, 1199348, 1499185, 1799022, 2998370, 3598044, 4497555, 5996740, 8995110, 17990220]

約数ペア:

[(1, 17990220), (2, 8995110), (3, 5996740), (4, 4497555), (5, 3598044), (6, 2998370), (10, 1799022), (12, 1499185), (15, 1199348), (20, 899511), (30, 599674), (60, 299837), (439, 40980), (683, 26340), (878, 20490), (1317, 13660), (1366, 13170), (1756, 10245), (2049, 8780), (2195, 8196), (2634, 6830), (2732, 6585), (3415, 5268), (4098, 4390)]