161269940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47713}}^1$

素因数の和:47748

約数の個数: 36

約数和(自身を含む): 366729804

約数和(自身を除く): 205459864

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 47713, 95426, 190852, 238565, 477130, 620269, 954260, 1240538, 2481076, 3101345, 6202690, 8063497, 12405380, 16126994, 32253988, 40317485, 80634970, 161269940]

約数ペア:

[(1, 161269940), (2, 80634970), (4, 40317485), (5, 32253988), (10, 16126994), (13, 12405380), (20, 8063497), (26, 6202690), (52, 3101345), (65, 2481076), (130, 1240538), (169, 954260), (260, 620269), (338, 477130), (676, 238565), (845, 190852), (1690, 95426), (3380, 47713)]