8727740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2011}}^1$

素因数の和:2058

約数の個数: 48

約数和(自身を含む): 21633024

約数和(自身を除く): 12905284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2011, 2170, 4022, 4340, 8044, 10055, 14077, 20110, 28154, 40220, 56308, 62341, 70385, 124682, 140770, 249364, 281540, 311705, 436387, 623410, 872774, 1246820, 1745548, 2181935, 4363870, 8727740]

約数ペア:

[(1, 8727740), (2, 4363870), (4, 2181935), (5, 1745548), (7, 1246820), (10, 872774), (14, 623410), (20, 436387), (28, 311705), (31, 281540), (35, 249364), (62, 140770), (70, 124682), (124, 70385), (140, 62341), (155, 56308), (217, 40220), (310, 28154), (434, 20110), (620, 14077), (868, 10055), (1085, 8044), (2011, 4340), (2170, 4022)]