64899940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{929}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 156240000

約数和(自身を除く): 91340060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 499, 929, 998, 1858, 1996, 2495, 3493, 3716, 4645, 4990, 6503, 6986, 9290, 9980, 13006, 13972, 17465, 18580, 26012, 32515, 34930, 65030, 69860, 130060, 463571, 927142, 1854284, 2317855, 3244997, 4635710, 6489994, 9271420, 12979988, 16224985, 32449970, 64899940]

約数ペア:

[(1, 64899940), (2, 32449970), (4, 16224985), (5, 12979988), (7, 9271420), (10, 6489994), (14, 4635710), (20, 3244997), (28, 2317855), (35, 1854284), (70, 927142), (140, 463571), (499, 130060), (929, 69860), (998, 65030), (1858, 34930), (1996, 32515), (2495, 26012), (3493, 18580), (3716, 17465), (4645, 13972), (4990, 13006), (6503, 9980), (6986, 9290)]