20512157925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{135193}}^1$

素因数の和:135247

約数の個数: 72

約数和(自身を含む): 41172521536

約数和(自身を除く): 20660363611

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 175, 255, 289, 357, 425, 525, 595, 867, 1275, 1445, 1785, 2023, 2975, 4335, 6069, 7225, 8925, 10115, 21675, 30345, 50575, 135193, 151725, 405579, 675965, 946351, 2027895, 2298281, 2839053, 3379825, 4731755, 6894843, 10139475, 11491405, 14195265, 16087967, 23658775, 34474215, 39070777, 48263901, 57457025, 70976325, 80439835, 117212331, 172371075, 195353885, 241319505, 273495439, 402199175, 586061655, 820486317, 976769425, 1206597525, 1367477195, 2930308275, 4102431585, 6837385975, 20512157925]

約数ペア:

[(1, 20512157925), (3, 6837385975), (5, 4102431585), (7, 2930308275), (15, 1367477195), (17, 1206597525), (21, 976769425), (25, 820486317), (35, 586061655), (51, 402199175), (75, 273495439), (85, 241319505), (105, 195353885), (119, 172371075), (175, 117212331), (255, 80439835), (289, 70976325), (357, 57457025), (425, 48263901), (525, 39070777), (595, 34474215), (867, 23658775), (1275, 16087967), (1445, 14195265), (1785, 11491405), (2023, 10139475), (2975, 6894843), (4335, 4731755), (6069, 3379825), (7225, 2839053), (8925, 2298281), (10115, 2027895), (21675, 946351), (30345, 675965), (50575, 405579), (135193, 151725)]