78508820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8161}}^1$

素因数の和:8220

約数の個数: 48

約数和(自身を含む): 182371728

約数和(自身を除く): 103862908

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 8161, 9620, 16322, 32644, 40805, 81610, 106093, 163220, 212186, 301957, 424372, 530465, 603914, 1060930, 1207828, 1509785, 2121860, 3019570, 3925441, 6039140, 7850882, 15701764, 19627205, 39254410, 78508820]

約数ペア:

[(1, 78508820), (2, 39254410), (4, 19627205), (5, 15701764), (10, 7850882), (13, 6039140), (20, 3925441), (26, 3019570), (37, 2121860), (52, 1509785), (65, 1207828), (74, 1060930), (130, 603914), (148, 530465), (185, 424372), (260, 301957), (370, 212186), (481, 163220), (740, 106093), (962, 81610), (1924, 40805), (2405, 32644), (4810, 16322), (8161, 9620)]