9021800

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 21278400

約数和(自身を除く): 12256600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 571, 632, 790, 1142, 1580, 1975, 2284, 2855, 3160, 3950, 4568, 5710, 7900, 11420, 14275, 15800, 22840, 28550, 45109, 57100, 90218, 114200, 180436, 225545, 360872, 451090, 902180, 1127725, 1804360, 2255450, 4510900, 9021800]

約数ペア:

[(1, 9021800), (2, 4510900), (4, 2255450), (5, 1804360), (8, 1127725), (10, 902180), (20, 451090), (25, 360872), (40, 225545), (50, 180436), (79, 114200), (100, 90218), (158, 57100), (200, 45109), (316, 28550), (395, 22840), (571, 15800), (632, 14275), (790, 11420), (1142, 7900), (1580, 5710), (1975, 4568), (2284, 3950), (2855, 3160)]