20346760

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{1483}}^1$

素因数の和:1515

約数の個数: 64

約数和(自身を含む): 53424000

約数和(自身を除く): 33077240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1483, 1715, 1960, 2744, 2966, 3430, 5932, 6860, 7415, 10381, 11864, 13720, 14830, 20762, 29660, 41524, 51905, 59320, 72667, 83048, 103810, 145334, 207620, 290668, 363335, 415240, 508669, 581336, 726670, 1017338, 1453340, 2034676, 2543345, 2906680, 4069352, 5086690, 10173380, 20346760]

約数ペア:

[(1, 20346760), (2, 10173380), (4, 5086690), (5, 4069352), (7, 2906680), (8, 2543345), (10, 2034676), (14, 1453340), (20, 1017338), (28, 726670), (35, 581336), (40, 508669), (49, 415240), (56, 363335), (70, 290668), (98, 207620), (140, 145334), (196, 103810), (245, 83048), (280, 72667), (343, 59320), (392, 51905), (490, 41524), (686, 29660), (980, 20762), (1372, 14830), (1483, 13720), (1715, 11864), (1960, 10381), (2744, 7415), (2966, 6860), (3430, 5932)]