18683960

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2797}}^1$

素因数の和:2975

約数の個数: 32

約数和(自身を含む): 42305760

約数和(自身を除く): 23621800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 2797, 3340, 5594, 6680, 11188, 13985, 22376, 27970, 55940, 111880, 467099, 934198, 1868396, 2335495, 3736792, 4670990, 9341980, 18683960]

約数ペア:

[(1, 18683960), (2, 9341980), (4, 4670990), (5, 3736792), (8, 2335495), (10, 1868396), (20, 934198), (40, 467099), (167, 111880), (334, 55940), (668, 27970), (835, 22376), (1336, 13985), (1670, 11188), (2797, 6680), (3340, 5594)]