8919020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 20756736

約数和(自身を除く): 11837716

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 571, 710, 781, 1142, 1420, 1562, 2284, 2855, 3124, 3905, 5710, 6281, 7810, 11420, 12562, 15620, 25124, 31405, 40541, 62810, 81082, 125620, 162164, 202705, 405410, 445951, 810820, 891902, 1783804, 2229755, 4459510, 8919020]

約数ペア:

[(1, 8919020), (2, 4459510), (4, 2229755), (5, 1783804), (10, 891902), (11, 810820), (20, 445951), (22, 405410), (44, 202705), (55, 162164), (71, 125620), (110, 81082), (142, 62810), (220, 40541), (284, 31405), (355, 25124), (571, 15620), (710, 12562), (781, 11420), (1142, 7810), (1420, 6281), (1562, 5710), (2284, 3905), (2855, 3124)]