20214740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{383}}^1$

素因数の和:441

約数の個数: 96

約数和(自身を含む): 54190080

約数和(自身を除く): 33975340

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 35, 52, 58, 65, 70, 91, 116, 130, 140, 145, 182, 203, 260, 290, 364, 377, 383, 406, 455, 580, 754, 766, 812, 910, 1015, 1508, 1532, 1820, 1885, 1915, 2030, 2639, 2681, 3770, 3830, 4060, 4979, 5278, 5362, 7540, 7660, 9958, 10556, 10724, 11107, 13195, 13405, 19916, 22214, 24895, 26390, 26810, 34853, 44428, 49790, 52780, 53620, 55535, 69706, 77749, 99580, 111070, 139412, 144391, 155498, 174265, 222140, 288782, 310996, 348530, 388745, 577564, 697060, 721955, 777490, 1010737, 1443910, 1554980, 2021474, 2887820, 4042948, 5053685, 10107370, 20214740]

約数ペア:

[(1, 20214740), (2, 10107370), (4, 5053685), (5, 4042948), (7, 2887820), (10, 2021474), (13, 1554980), (14, 1443910), (20, 1010737), (26, 777490), (28, 721955), (29, 697060), (35, 577564), (52, 388745), (58, 348530), (65, 310996), (70, 288782), (91, 222140), (116, 174265), (130, 155498), (140, 144391), (145, 139412), (182, 111070), (203, 99580), (260, 77749), (290, 69706), (364, 55535), (377, 53620), (383, 52780), (406, 49790), (455, 44428), (580, 34853), (754, 26810), (766, 26390), (812, 24895), (910, 22214), (1015, 19916), (1508, 13405), (1532, 13195), (1820, 11107), (1885, 10724), (1915, 10556), (2030, 9958), (2639, 7660), (2681, 7540), (3770, 5362), (3830, 5278), (4060, 4979)]