20413400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{2083}}^1$

素因数の和:2113

約数の個数: 72

約数和(自身を含む): 55236420

約数和(自身を除く): 34823020

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, 2083, 2450, 4166, 4900, 8332, 9800, 10415, 14581, 16664, 20830, 29162, 41660, 52075, 58324, 72905, 83320, 102067, 104150, 116648, 145810, 204134, 208300, 291620, 364525, 408268, 416600, 510335, 583240, 729050, 816536, 1020670, 1458100, 2041340, 2551675, 2916200, 4082680, 5103350, 10206700, 20413400]

約数ペア:

[(1, 20413400), (2, 10206700), (4, 5103350), (5, 4082680), (7, 2916200), (8, 2551675), (10, 2041340), (14, 1458100), (20, 1020670), (25, 816536), (28, 729050), (35, 583240), (40, 510335), (49, 416600), (50, 408268), (56, 364525), (70, 291620), (98, 208300), (100, 204134), (140, 145810), (175, 116648), (196, 104150), (200, 102067), (245, 83320), (280, 72905), (350, 58324), (392, 52075), (490, 41660), (700, 29162), (980, 20830), (1225, 16664), (1400, 14581), (1960, 10415), (2083, 9800), (2450, 8332), (4166, 4900)]