78870040

素因数分解:

$2^3\times 5^1\times {\mathrm{761}}^1\times {\mathrm{2591}}^1$

素因数の和:3363

約数の個数: 32

約数和(自身を含む): 177759360

約数和(自身を除く): 98889320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 761, 1522, 2591, 3044, 3805, 5182, 6088, 7610, 10364, 12955, 15220, 20728, 25910, 30440, 51820, 103640, 1971751, 3943502, 7887004, 9858755, 15774008, 19717510, 39435020, 78870040]

約数ペア:

[(1, 78870040), (2, 39435020), (4, 19717510), (5, 15774008), (8, 9858755), (10, 7887004), (20, 3943502), (40, 1971751), (761, 103640), (1522, 51820), (2591, 30440), (3044, 25910), (3805, 20728), (5182, 15220), (6088, 12955), (7610, 10364)]