77646940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{17891}}^1$

素因数の和:17938

約数の個数: 48

約数和(自身を含む): 192374784

約数和(自身を除く): 114727844

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, 2170, 4340, 17891, 35782, 71564, 89455, 125237, 178910, 250474, 357820, 500948, 554621, 626185, 1109242, 1252370, 2218484, 2504740, 2773105, 3882347, 5546210, 7764694, 11092420, 15529388, 19411735, 38823470, 77646940]

約数ペア:

[(1, 77646940), (2, 38823470), (4, 19411735), (5, 15529388), (7, 11092420), (10, 7764694), (14, 5546210), (20, 3882347), (28, 2773105), (31, 2504740), (35, 2218484), (62, 1252370), (70, 1109242), (124, 626185), (140, 554621), (155, 500948), (217, 357820), (310, 250474), (434, 178910), (620, 125237), (868, 89455), (1085, 71564), (2170, 35782), (4340, 17891)]