637989040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{613451}}^1$

素因数の和:613477

約数の個数: 40

約数和(自身を含む): 1597429008

約数和(自身を除く): 959439968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 613451, 1226902, 2453804, 3067255, 4907608, 6134510, 7974863, 9815216, 12269020, 15949726, 24538040, 31899452, 39874315, 49076080, 63798904, 79748630, 127597808, 159497260, 318994520, 637989040]

約数ペア:

[(1, 637989040), (2, 318994520), (4, 159497260), (5, 127597808), (8, 79748630), (10, 63798904), (13, 49076080), (16, 39874315), (20, 31899452), (26, 24538040), (40, 15949726), (52, 12269020), (65, 9815216), (80, 7974863), (104, 6134510), (130, 4907608), (208, 3067255), (260, 2453804), (520, 1226902), (1040, 613451)]