20131461760

素因数分解:

$2^7\times 5^1\times {\mathrm{31455409}}^1$

素因数の和:31455428

約数の個数: 32

約数和(自身を含む): 48126777300

約数和(自身を除く): 27995315540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31455409, 62910818, 125821636, 157277045, 251643272, 314554090, 503286544, 629108180, 1006573088, 1258216360, 2013146176, 2516432720, 4026292352, 5032865440, 10065730880, 20131461760]

約数ペア:

[(1, 20131461760), (2, 10065730880), (4, 5032865440), (5, 4026292352), (8, 2516432720), (10, 2013146176), (16, 1258216360), (20, 1006573088), (32, 629108180), (40, 503286544), (64, 314554090), (80, 251643272), (128, 157277045), (160, 125821636), (320, 62910818), (640, 31455409)]