19056940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4391}}^1$

素因数の和:4438

約数の個数: 48

約数和(自身を含む): 47222784

約数和(自身を除く): 28165844

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, 4391, 8782, 17564, 21955, 30737, 43910, 61474, 87820, 122948, 136121, 153685, 272242, 307370, 544484, 614740, 680605, 952847, 1361210, 1905694, 2722420, 3811388, 4764235, 9528470, 19056940]

約数ペア:

[(1, 19056940), (2, 9528470), (4, 4764235), (5, 3811388), (7, 2722420), (10, 1905694), (14, 1361210), (20, 952847), (28, 680605), (31, 614740), (35, 544484), (62, 307370), (70, 272242), (124, 153685), (140, 136121), (155, 122948), (217, 87820), (310, 61474), (434, 43910), (620, 30737), (868, 21955), (1085, 17564), (2170, 8782), (4340, 4391)]