161305040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3607}}^1$

素因数の和:3676

約数の個数: 80

約数和(自身を含む): 413390208

約数和(自身を除く): 252085168

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 2236, 2795, 3440, 3607, 4472, 5590, 7214, 8944, 11180, 14428, 18035, 22360, 28856, 36070, 44720, 46891, 57712, 72140, 93782, 144280, 155101, 187564, 234455, 288560, 310202, 375128, 468910, 620404, 750256, 775505, 937820, 1240808, 1551010, 1875640, 2016313, 2481616, 3102020, 3751280, 4032626, 6204040, 8065252, 10081565, 12408080, 16130504, 20163130, 32261008, 40326260, 80652520, 161305040]

約数ペア:

[(1, 161305040), (2, 80652520), (4, 40326260), (5, 32261008), (8, 20163130), (10, 16130504), (13, 12408080), (16, 10081565), (20, 8065252), (26, 6204040), (40, 4032626), (43, 3751280), (52, 3102020), (65, 2481616), (80, 2016313), (86, 1875640), (104, 1551010), (130, 1240808), (172, 937820), (208, 775505), (215, 750256), (260, 620404), (344, 468910), (430, 375128), (520, 310202), (559, 288560), (688, 234455), (860, 187564), (1040, 155101), (1118, 144280), (1720, 93782), (2236, 72140), (2795, 57712), (3440, 46891), (3607, 44720), (4472, 36070), (5590, 28856), (7214, 22360), (8944, 18035), (11180, 14428)]