8137780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1571}}^1$

素因数の和:1624

約数の個数: 48

約数和(自身を含む): 20071296

約数和(自身を除く): 11933516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 1571, 2590, 3142, 5180, 6284, 7855, 10997, 15710, 21994, 31420, 43988, 54985, 58127, 109970, 116254, 219940, 232508, 290635, 406889, 581270, 813778, 1162540, 1627556, 2034445, 4068890, 8137780]

約数ペア:

[(1, 8137780), (2, 4068890), (4, 2034445), (5, 1627556), (7, 1162540), (10, 813778), (14, 581270), (20, 406889), (28, 290635), (35, 232508), (37, 219940), (70, 116254), (74, 109970), (140, 58127), (148, 54985), (185, 43988), (259, 31420), (370, 21994), (518, 15710), (740, 10997), (1036, 7855), (1295, 6284), (1571, 5180), (2590, 3142)]