42981965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 58254336

約数和(自身を除く): 15272371

約数列:

[1, 5, 13, 31, 65, 83, 155, 257, 403, 415, 1079, 1285, 2015, 2573, 3341, 5395, 7967, 12865, 16705, 21331, 33449, 39835, 103571, 106655, 167245, 277303, 517855, 661261, 1386515, 3306305, 8596393, 42981965]

約数ペア:

[(1, 42981965), (5, 8596393), (13, 3306305), (31, 1386515), (65, 661261), (83, 517855), (155, 277303), (257, 167245), (403, 106655), (415, 103571), (1079, 39835), (1285, 33449), (2015, 21331), (2573, 16705), (3341, 12865), (5395, 7967)]