7540820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{883}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 18415488

約数和(自身を除く): 10874668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 883, 1220, 1708, 1766, 2135, 3532, 4270, 4415, 6181, 8540, 8830, 12362, 17660, 24724, 30905, 53863, 61810, 107726, 123620, 215452, 269315, 377041, 538630, 754082, 1077260, 1508164, 1885205, 3770410, 7540820]

約数ペア:

[(1, 7540820), (2, 3770410), (4, 1885205), (5, 1508164), (7, 1077260), (10, 754082), (14, 538630), (20, 377041), (28, 269315), (35, 215452), (61, 123620), (70, 107726), (122, 61810), (140, 53863), (244, 30905), (305, 24724), (427, 17660), (610, 12362), (854, 8830), (883, 8540), (1220, 6181), (1708, 4415), (1766, 4270), (2135, 3532)]