28241980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5717}}^1$

素因数の和:5758

約数の個数: 48

約数和(自身を含む): 67243680

約数和(自身を除く): 39001700

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 5717, 11434, 22868, 28585, 57170, 74321, 108623, 114340, 148642, 217246, 297284, 371605, 434492, 543115, 743210, 1086230, 1412099, 1486420, 2172460, 2824198, 5648396, 7060495, 14120990, 28241980]

約数ペア:

[(1, 28241980), (2, 14120990), (4, 7060495), (5, 5648396), (10, 2824198), (13, 2172460), (19, 1486420), (20, 1412099), (26, 1086230), (38, 743210), (52, 543115), (65, 434492), (76, 371605), (95, 297284), (130, 217246), (190, 148642), (247, 114340), (260, 108623), (380, 74321), (494, 57170), (988, 28585), (1235, 22868), (2470, 11434), (4940, 5717)]