90542920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{174121}}^1$

素因数の和:174145

約数の個数: 32

約数和(自身を含む): 219393720

約数和(自身を除く): 128850800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 174121, 348242, 696484, 870605, 1392968, 1741210, 2263573, 3482420, 4527146, 6964840, 9054292, 11317865, 18108584, 22635730, 45271460, 90542920]

約数ペア:

[(1, 90542920), (2, 45271460), (4, 22635730), (5, 18108584), (8, 11317865), (10, 9054292), (13, 6964840), (20, 4527146), (26, 3482420), (40, 2263573), (52, 1741210), (65, 1392968), (104, 870605), (130, 696484), (260, 348242), (520, 174121)]