19885620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2111}}^1$

素因数の和:2280

約数の個数: 48

約数和(自身を含む): 56060928

約数和(自身を除く): 36175308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1884, 2111, 2355, 3140, 4222, 4710, 6333, 8444, 9420, 10555, 12666, 21110, 25332, 31665, 42220, 63330, 126660, 331427, 662854, 994281, 1325708, 1657135, 1988562, 3314270, 3977124, 4971405, 6628540, 9942810, 19885620]

約数ペア:

[(1, 19885620), (2, 9942810), (3, 6628540), (4, 4971405), (5, 3977124), (6, 3314270), (10, 1988562), (12, 1657135), (15, 1325708), (20, 994281), (30, 662854), (60, 331427), (157, 126660), (314, 63330), (471, 42220), (628, 31665), (785, 25332), (942, 21110), (1570, 12666), (1884, 10555), (2111, 9420), (2355, 8444), (3140, 6333), (4222, 4710)]