25770160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:446

約数の個数: 80

約数和(自身を含む): 65620800

約数和(自身を除く): 39850640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 130, 142, 208, 260, 284, 349, 355, 520, 568, 698, 710, 923, 1040, 1136, 1396, 1420, 1745, 1846, 2792, 2840, 3490, 3692, 4537, 4615, 5584, 5680, 6980, 7384, 9074, 9230, 13960, 14768, 18148, 18460, 22685, 24779, 27920, 36296, 36920, 45370, 49558, 72592, 73840, 90740, 99116, 123895, 181480, 198232, 247790, 322127, 362960, 396464, 495580, 644254, 991160, 1288508, 1610635, 1982320, 2577016, 3221270, 5154032, 6442540, 12885080, 25770160]

約数ペア:

[(1, 25770160), (2, 12885080), (4, 6442540), (5, 5154032), (8, 3221270), (10, 2577016), (13, 1982320), (16, 1610635), (20, 1288508), (26, 991160), (40, 644254), (52, 495580), (65, 396464), (71, 362960), (80, 322127), (104, 247790), (130, 198232), (142, 181480), (208, 123895), (260, 99116), (284, 90740), (349, 73840), (355, 72592), (520, 49558), (568, 45370), (698, 36920), (710, 36296), (923, 27920), (1040, 24779), (1136, 22685), (1396, 18460), (1420, 18148), (1745, 14768), (1846, 13960), (2792, 9230), (2840, 9074), (3490, 7384), (3692, 6980), (4537, 5680), (4615, 5584)]