91312220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1193}}^1$

素因数の和:1334

約数の個数: 48

約数和(自身を含む): 198586080

約数和(自身を除く): 107273860

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 356, 430, 445, 860, 890, 1193, 1780, 2386, 3827, 4772, 5965, 7654, 11930, 15308, 19135, 23860, 38270, 51299, 76540, 102598, 106177, 205196, 212354, 256495, 424708, 512990, 530885, 1025980, 1061770, 2123540, 4565611, 9131222, 18262444, 22828055, 45656110, 91312220]

約数ペア:

[(1, 91312220), (2, 45656110), (4, 22828055), (5, 18262444), (10, 9131222), (20, 4565611), (43, 2123540), (86, 1061770), (89, 1025980), (172, 530885), (178, 512990), (215, 424708), (356, 256495), (430, 212354), (445, 205196), (860, 106177), (890, 102598), (1193, 76540), (1780, 51299), (2386, 38270), (3827, 23860), (4772, 19135), (5965, 15308), (7654, 11930)]