20667480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1097}}^1$

素因数の和:1268

約数の個数: 64

約数和(自身を含む): 62454240

約数和(自身を除く): 41786760

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, 1097, 1256, 1570, 1884, 2194, 2355, 3140, 3291, 3768, 4388, 4710, 5485, 6280, 6582, 8776, 9420, 10970, 13164, 16455, 18840, 21940, 26328, 32910, 43880, 65820, 131640, 172229, 344458, 516687, 688916, 861145, 1033374, 1377832, 1722290, 2066748, 2583435, 3444580, 4133496, 5166870, 6889160, 10333740, 20667480]

約数ペア:

[(1, 20667480), (2, 10333740), (3, 6889160), (4, 5166870), (5, 4133496), (6, 3444580), (8, 2583435), (10, 2066748), (12, 1722290), (15, 1377832), (20, 1033374), (24, 861145), (30, 688916), (40, 516687), (60, 344458), (120, 172229), (157, 131640), (314, 65820), (471, 43880), (628, 32910), (785, 26328), (942, 21940), (1097, 18840), (1256, 16455), (1570, 13164), (1884, 10970), (2194, 9420), (2355, 8776), (3140, 6582), (3291, 6280), (3768, 5485), (4388, 4710)]