18844880

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2287}}^1$

素因数の和:2403

約数の個数: 40

約数和(自身を含む): 44259072

約数和(自身を除く): 25414192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 2287, 4120, 4574, 8240, 9148, 11435, 18296, 22870, 36592, 45740, 91480, 182960, 235561, 471122, 942244, 1177805, 1884488, 2355610, 3768976, 4711220, 9422440, 18844880]

約数ペア:

[(1, 18844880), (2, 9422440), (4, 4711220), (5, 3768976), (8, 2355610), (10, 1884488), (16, 1177805), (20, 942244), (40, 471122), (80, 235561), (103, 182960), (206, 91480), (412, 45740), (515, 36592), (824, 22870), (1030, 18296), (1648, 11435), (2060, 9148), (2287, 8240), (4120, 4574)]