20160400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3877}}^1$

素因数の和:3908

約数の個数: 60

約数和(自身を含む): 52174612

約数和(自身を除く): 32014212

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 3877, 5200, 7754, 15508, 19385, 31016, 38770, 50401, 62032, 77540, 96925, 100802, 155080, 193850, 201604, 252005, 310160, 387700, 403208, 504010, 775400, 806416, 1008020, 1260025, 1550800, 2016040, 2520050, 4032080, 5040100, 10080200, 20160400]

約数ペア:

[(1, 20160400), (2, 10080200), (4, 5040100), (5, 4032080), (8, 2520050), (10, 2016040), (13, 1550800), (16, 1260025), (20, 1008020), (25, 806416), (26, 775400), (40, 504010), (50, 403208), (52, 387700), (65, 310160), (80, 252005), (100, 201604), (104, 193850), (130, 155080), (200, 100802), (208, 96925), (260, 77540), (325, 62032), (400, 50401), (520, 38770), (650, 31016), (1040, 19385), (1300, 15508), (2600, 7754), (3877, 5200)]