20279084

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 42663936

約数和(自身を除く): 22384852

約数列:

[1, 2, 4, 7, 14, 28, 31, 61, 62, 122, 124, 217, 244, 383, 427, 434, 766, 854, 868, 1532, 1708, 1891, 2681, 3782, 5362, 7564, 10724, 11873, 13237, 23363, 23746, 26474, 46726, 47492, 52948, 83111, 93452, 163541, 166222, 327082, 332444, 654164, 724253, 1448506, 2897012, 5069771, 10139542, 20279084]

約数ペア:

[(1, 20279084), (2, 10139542), (4, 5069771), (7, 2897012), (14, 1448506), (28, 724253), (31, 654164), (61, 332444), (62, 327082), (122, 166222), (124, 163541), (217, 93452), (244, 83111), (383, 52948), (427, 47492), (434, 46726), (766, 26474), (854, 23746), (868, 23363), (1532, 13237), (1708, 11873), (1891, 10724), (2681, 7564), (3782, 5362)]