20687514620

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6942119}}^1$

素因数の和:6942277

約数の個数: 24

約数和(自身を含む): 43735356000

約数和(自身を除く): 23047841380

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6942119, 13884238, 27768476, 34710595, 69421190, 138842380, 1034375731, 2068751462, 4137502924, 5171878655, 10343757310, 20687514620]

約数ペア:

[(1, 20687514620), (2, 10343757310), (4, 5171878655), (5, 4137502924), (10, 2068751462), (20, 1034375731), (149, 138842380), (298, 69421190), (596, 34710595), (745, 27768476), (1490, 13884238), (2980, 6942119)]