17937220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4133}}^1$

素因数の和:4180

約数の個数: 48

約数和(自身を含む): 44448768

約数和(自身を除く): 26511548

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, 4133, 4340, 8266, 16532, 20665, 28931, 41330, 57862, 82660, 115724, 128123, 144655, 256246, 289310, 512492, 578620, 640615, 896861, 1281230, 1793722, 2562460, 3587444, 4484305, 8968610, 17937220]

約数ペア:

[(1, 17937220), (2, 8968610), (4, 4484305), (5, 3587444), (7, 2562460), (10, 1793722), (14, 1281230), (20, 896861), (28, 640615), (31, 578620), (35, 512492), (62, 289310), (70, 256246), (124, 144655), (140, 128123), (155, 115724), (217, 82660), (310, 57862), (434, 41330), (620, 28931), (868, 20665), (1085, 16532), (2170, 8266), (4133, 4340)]