89290760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{171713}}^1$

素因数の和:171737

約数の個数: 32

約数和(自身を含む): 216359640

約数和(自身を除く): 127068880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 171713, 343426, 686852, 858565, 1373704, 1717130, 2232269, 3434260, 4464538, 6868520, 8929076, 11161345, 17858152, 22322690, 44645380, 89290760]

約数ペア:

[(1, 89290760), (2, 44645380), (4, 22322690), (5, 17858152), (8, 11161345), (10, 8929076), (13, 6868520), (20, 4464538), (26, 3434260), (40, 2232269), (52, 1717130), (65, 1373704), (104, 858565), (130, 686852), (260, 343426), (520, 171713)]