20364512

素因数分解:

$2^5\times 7^1\times {\mathrm{229}}^1\times {\mathrm{397}}^1$

素因数の和:643

約数の個数: 48

約数和(自身を含む): 46136160

約数和(自身を除く): 25771648

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 229, 397, 458, 794, 916, 1588, 1603, 1832, 2779, 3176, 3206, 3664, 5558, 6352, 6412, 7328, 11116, 12704, 12824, 22232, 25648, 44464, 51296, 88928, 90913, 181826, 363652, 636391, 727304, 1272782, 1454608, 2545564, 2909216, 5091128, 10182256, 20364512]

約数ペア:

[(1, 20364512), (2, 10182256), (4, 5091128), (7, 2909216), (8, 2545564), (14, 1454608), (16, 1272782), (28, 727304), (32, 636391), (56, 363652), (112, 181826), (224, 90913), (229, 88928), (397, 51296), (458, 44464), (794, 25648), (916, 22232), (1588, 12824), (1603, 12704), (1832, 11116), (2779, 7328), (3176, 6412), (3206, 6352), (3664, 5558)]