663465940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{15451}}^1$

素因数の和:15592

約数の個数: 48

約数和(自身を含む): 1479683520

約数和(自身を除く): 816217580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 113, 190, 226, 380, 452, 565, 1130, 2147, 2260, 4294, 8588, 10735, 15451, 21470, 30902, 42940, 61804, 77255, 154510, 293569, 309020, 587138, 1174276, 1467845, 1745963, 2935690, 3491926, 5871380, 6983852, 8729815, 17459630, 33173297, 34919260, 66346594, 132693188, 165866485, 331732970, 663465940]

約数ペア:

[(1, 663465940), (2, 331732970), (4, 165866485), (5, 132693188), (10, 66346594), (19, 34919260), (20, 33173297), (38, 17459630), (76, 8729815), (95, 6983852), (113, 5871380), (190, 3491926), (226, 2935690), (380, 1745963), (452, 1467845), (565, 1174276), (1130, 587138), (2147, 309020), (2260, 293569), (4294, 154510), (8588, 77255), (10735, 61804), (15451, 42940), (21470, 30902)]