82306040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 190848960

約数和(自身を除く): 108542920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 73, 142, 146, 284, 292, 355, 365, 397, 568, 584, 710, 730, 794, 1420, 1460, 1588, 1985, 2840, 2920, 3176, 3970, 5183, 7940, 10366, 15880, 20732, 25915, 28187, 28981, 41464, 51830, 56374, 57962, 103660, 112748, 115924, 140935, 144905, 207320, 225496, 231848, 281870, 289810, 563740, 579620, 1127480, 1159240, 2057651, 4115302, 8230604, 10288255, 16461208, 20576510, 41153020, 82306040]

約数ペア:

[(1, 82306040), (2, 41153020), (4, 20576510), (5, 16461208), (8, 10288255), (10, 8230604), (20, 4115302), (40, 2057651), (71, 1159240), (73, 1127480), (142, 579620), (146, 563740), (284, 289810), (292, 281870), (355, 231848), (365, 225496), (397, 207320), (568, 144905), (584, 140935), (710, 115924), (730, 112748), (794, 103660), (1420, 57962), (1460, 56374), (1588, 51830), (1985, 41464), (2840, 28981), (2920, 28187), (3176, 25915), (3970, 20732), (5183, 15880), (7940, 10366)]