28908740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6661}}^1$

素因数の和:6708

約数の個数: 48

約数和(自身を含む): 71629824

約数和(自身を除く): 42721084

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, 6661, 13322, 26644, 33305, 46627, 66610, 93254, 133220, 186508, 206491, 233135, 412982, 466270, 825964, 932540, 1032455, 1445437, 2064910, 2890874, 4129820, 5781748, 7227185, 14454370, 28908740]

約数ペア:

[(1, 28908740), (2, 14454370), (4, 7227185), (5, 5781748), (7, 4129820), (10, 2890874), (14, 2064910), (20, 1445437), (28, 1032455), (31, 932540), (35, 825964), (62, 466270), (70, 412982), (124, 233135), (140, 206491), (155, 186508), (217, 133220), (310, 93254), (434, 66610), (620, 46627), (868, 33305), (1085, 26644), (2170, 13322), (4340, 6661)]