827197820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1\times {\mathrm{1789}}^1$

素因数の和:2238

約数の個数: 48

約数和(自身を含む): 1771240800

約数和(自身を除く): 944042980

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 379, 610, 758, 1220, 1516, 1789, 1895, 3578, 3790, 7156, 7580, 8945, 17890, 23119, 35780, 46238, 92476, 109129, 115595, 218258, 231190, 436516, 462380, 545645, 678031, 1091290, 1356062, 2182580, 2712124, 3390155, 6780310, 13560620, 41359891, 82719782, 165439564, 206799455, 413598910, 827197820]

約数ペア:

[(1, 827197820), (2, 413598910), (4, 206799455), (5, 165439564), (10, 82719782), (20, 41359891), (61, 13560620), (122, 6780310), (244, 3390155), (305, 2712124), (379, 2182580), (610, 1356062), (758, 1091290), (1220, 678031), (1516, 545645), (1789, 462380), (1895, 436516), (3578, 231190), (3790, 218258), (7156, 115595), (7580, 109129), (8945, 92476), (17890, 46238), (23119, 35780)]