20396890

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:438

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 17342630

約数列:

[1, 2, 5, 10, 59, 118, 181, 191, 295, 362, 382, 590, 905, 955, 1810, 1910, 10679, 11269, 21358, 22538, 34571, 53395, 56345, 69142, 106790, 112690, 172855, 345710, 2039689, 4079378, 10198445, 20396890]

約数ペア:

[(1, 20396890), (2, 10198445), (5, 4079378), (10, 2039689), (59, 345710), (118, 172855), (181, 112690), (191, 106790), (295, 69142), (362, 56345), (382, 53395), (590, 34571), (905, 22538), (955, 21358), (1810, 11269), (1910, 10679)]