31128760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59863}}^1$

素因数の和:59887

約数の個数: 32

約数和(自身を含む): 75428640

約数和(自身を除く): 44299880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 59863, 119726, 239452, 299315, 478904, 598630, 778219, 1197260, 1556438, 2394520, 3112876, 3891095, 6225752, 7782190, 15564380, 31128760]

約数ペア:

[(1, 31128760), (2, 15564380), (4, 7782190), (5, 6225752), (8, 3891095), (10, 3112876), (13, 2394520), (20, 1556438), (26, 1197260), (40, 778219), (52, 598630), (65, 478904), (104, 299315), (130, 239452), (260, 119726), (520, 59863)]