2868740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 7117824

約数和(自身を除く): 4249084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 661, 868, 1085, 1322, 2170, 2644, 3305, 4340, 4627, 6610, 9254, 13220, 18508, 20491, 23135, 40982, 46270, 81964, 92540, 102455, 143437, 204910, 286874, 409820, 573748, 717185, 1434370, 2868740]

約数ペア:

[(1, 2868740), (2, 1434370), (4, 717185), (5, 573748), (7, 409820), (10, 286874), (14, 204910), (20, 143437), (28, 102455), (31, 92540), (35, 81964), (62, 46270), (70, 40982), (124, 23135), (140, 20491), (155, 18508), (217, 13220), (310, 9254), (434, 6610), (620, 4627), (661, 4340), (868, 3305), (1085, 2644), (1322, 2170)]