521128890

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{643369}}^1$

素因数の和:643388

約数の個数: 40

約数和(自身を含む): 1401259860

約数和(自身を除く): 880130970

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 643369, 1286738, 1930107, 3216845, 3860214, 5790321, 6433690, 9650535, 11580642, 17370963, 19301070, 28951605, 34741926, 52112889, 57903210, 86854815, 104225778, 173709630, 260564445, 521128890]

約数ペア:

[(1, 521128890), (2, 260564445), (3, 173709630), (5, 104225778), (6, 86854815), (9, 57903210), (10, 52112889), (15, 34741926), (18, 28951605), (27, 19301070), (30, 17370963), (45, 11580642), (54, 9650535), (81, 6433690), (90, 5790321), (135, 3860214), (162, 3216845), (270, 1930107), (405, 1286738), (810, 643369)]