28740740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{7079}}^1$

素因数の和:7124

約数の個数: 48

約数和(自身を含む): 71366400

約数和(自身を除く): 42625660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 7079, 14158, 28316, 35395, 49553, 70790, 99106, 141580, 198212, 205291, 247765, 410582, 495530, 821164, 991060, 1026455, 1437037, 2052910, 2874074, 4105820, 5748148, 7185185, 14370370, 28740740]

約数ペア:

[(1, 28740740), (2, 14370370), (4, 7185185), (5, 5748148), (7, 4105820), (10, 2874074), (14, 2052910), (20, 1437037), (28, 1026455), (29, 991060), (35, 821164), (58, 495530), (70, 410582), (116, 247765), (140, 205291), (145, 198212), (203, 141580), (290, 99106), (406, 70790), (580, 49553), (812, 35395), (1015, 28316), (2030, 14158), (4060, 7079)]