256920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2141}}^1$

素因数の和:2155

約数の個数: 32

約数和(自身を含む): 771120

約数和(自身を除く): 514200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2141, 4282, 6423, 8564, 10705, 12846, 17128, 21410, 25692, 32115, 42820, 51384, 64230, 85640, 128460, 256920]

約数ペア:

[(1, 256920), (2, 128460), (3, 85640), (4, 64230), (5, 51384), (6, 42820), (8, 32115), (10, 25692), (12, 21410), (15, 17128), (20, 12846), (24, 10705), (30, 8564), (40, 6423), (60, 4282), (120, 2141)]