18783480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{997}}^1$

素因数の和:1168

約数の個数: 64

約数和(自身を含む): 56766240

約数和(自身を除く): 37982760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 997, 1256, 1570, 1884, 1994, 2355, 2991, 3140, 3768, 3988, 4710, 4985, 5982, 6280, 7976, 9420, 9970, 11964, 14955, 18840, 19940, 23928, 29910, 39880, 59820, 119640, 156529, 313058, 469587, 626116, 782645, 939174, 1252232, 1565290, 1878348, 2347935, 3130580, 3756696, 4695870, 6261160, 9391740, 18783480]

約数ペア:

[(1, 18783480), (2, 9391740), (3, 6261160), (4, 4695870), (5, 3756696), (6, 3130580), (8, 2347935), (10, 1878348), (12, 1565290), (15, 1252232), (20, 939174), (24, 782645), (30, 626116), (40, 469587), (60, 313058), (120, 156529), (157, 119640), (314, 59820), (471, 39880), (628, 29910), (785, 23928), (942, 19940), (997, 18840), (1256, 14955), (1570, 11964), (1884, 9970), (1994, 9420), (2355, 7976), (2991, 6280), (3140, 5982), (3768, 4985), (3988, 4710)]