20732840

素因数分解:

$2^3\times 5^1\times {\mathrm{587}}^1\times {\mathrm{883}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 46781280

約数和(自身を除く): 26048440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 587, 883, 1174, 1766, 2348, 2935, 3532, 4415, 4696, 5870, 7064, 8830, 11740, 17660, 23480, 35320, 518321, 1036642, 2073284, 2591605, 4146568, 5183210, 10366420, 20732840]

約数ペア:

[(1, 20732840), (2, 10366420), (4, 5183210), (5, 4146568), (8, 2591605), (10, 2073284), (20, 1036642), (40, 518321), (587, 35320), (883, 23480), (1174, 17660), (1766, 11740), (2348, 8830), (2935, 7064), (3532, 5870), (4415, 4696)]