20341281800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{2075641}}^1$

素因数の和:2075671

約数の個数: 72

約数和(自身を含む): 55014891210

約数和(自身を除く): 34673609410

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 9800, 2075641, 4151282, 8302564, 10378205, 14529487, 16605128, 20756410, 29058974, 41512820, 51891025, 58117948, 72647435, 83025640, 101706409, 103782050, 116235896, 145294870, 203412818, 207564100, 290589740, 363237175, 406825636, 415128200, 508532045, 581179480, 726474350, 813651272, 1017064090, 1452948700, 2034128180, 2542660225, 2905897400, 4068256360, 5085320450, 10170640900, 20341281800]

約数ペア:

[(1, 20341281800), (2, 10170640900), (4, 5085320450), (5, 4068256360), (7, 2905897400), (8, 2542660225), (10, 2034128180), (14, 1452948700), (20, 1017064090), (25, 813651272), (28, 726474350), (35, 581179480), (40, 508532045), (49, 415128200), (50, 406825636), (56, 363237175), (70, 290589740), (98, 207564100), (100, 203412818), (140, 145294870), (175, 116235896), (196, 103782050), (200, 101706409), (245, 83025640), (280, 72647435), (350, 58117948), (392, 51891025), (490, 41512820), (700, 29058974), (980, 20756410), (1225, 16605128), (1400, 14529487), (1960, 10378205), (2450, 8302564), (4900, 4151282), (9800, 2075641)]