28657070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12967}}^1$

素因数の和:13004

約数の個数: 32

約数和(自身を含む): 58822848

約数和(自身を除く): 30165778

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 12967, 25934, 64835, 129670, 168571, 220439, 337142, 440878, 842855, 1102195, 1685710, 2204390, 2865707, 5731414, 14328535, 28657070]

約数ペア:

[(1, 28657070), (2, 14328535), (5, 5731414), (10, 2865707), (13, 2204390), (17, 1685710), (26, 1102195), (34, 842855), (65, 440878), (85, 337142), (130, 220439), (170, 168571), (221, 129670), (442, 64835), (1105, 25934), (2210, 12967)]