12447760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11969}}^1$

素因数の和:11995

約数の個数: 40

約数和(自身を含む): 31169880

約数和(自身を除く): 18722120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 11969, 23938, 47876, 59845, 95752, 119690, 155597, 191504, 239380, 311194, 478760, 622388, 777985, 957520, 1244776, 1555970, 2489552, 3111940, 6223880, 12447760]

約数ペア:

[(1, 12447760), (2, 6223880), (4, 3111940), (5, 2489552), (8, 1555970), (10, 1244776), (13, 957520), (16, 777985), (20, 622388), (26, 478760), (40, 311194), (52, 239380), (65, 191504), (80, 155597), (104, 119690), (130, 95752), (208, 59845), (260, 47876), (520, 23938), (1040, 11969)]