20189015

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1279}}^1$

素因数の和:1343

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 10776745

約数列:

[1, 5, 7, 11, 35, 41, 55, 77, 205, 287, 385, 451, 1279, 1435, 2255, 3157, 6395, 8953, 14069, 15785, 44765, 52439, 70345, 98483, 262195, 367073, 492415, 576829, 1835365, 2884145, 4037803, 20189015]

約数ペア:

[(1, 20189015), (5, 4037803), (7, 2884145), (11, 1835365), (35, 576829), (41, 492415), (55, 367073), (77, 262195), (205, 98483), (287, 70345), (385, 52439), (451, 44765), (1279, 15785), (1435, 14069), (2255, 8953), (3157, 6395)]