211048760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{405863}}^1$

素因数の和:405887

約数の個数: 32

約数和(自身を含む): 511388640

約数和(自身を除く): 300339880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 405863, 811726, 1623452, 2029315, 3246904, 4058630, 5276219, 8117260, 10552438, 16234520, 21104876, 26381095, 42209752, 52762190, 105524380, 211048760]

約数ペア:

[(1, 211048760), (2, 105524380), (4, 52762190), (5, 42209752), (8, 26381095), (10, 21104876), (13, 16234520), (20, 10552438), (26, 8117260), (40, 5276219), (52, 4058630), (65, 3246904), (104, 2029315), (130, 1623452), (260, 811726), (520, 405863)]