20523100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15787}}^1$

素因数の和:15814

約数の個数: 36

約数和(自身を含む): 47963944

約数和(自身を除く): 27440844

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15787, 31574, 63148, 78935, 157870, 205231, 315740, 394675, 410462, 789350, 820924, 1026155, 1578700, 2052310, 4104620, 5130775, 10261550, 20523100]

約数ペア:

[(1, 20523100), (2, 10261550), (4, 5130775), (5, 4104620), (10, 2052310), (13, 1578700), (20, 1026155), (25, 820924), (26, 789350), (50, 410462), (52, 394675), (65, 315740), (100, 205231), (130, 157870), (260, 78935), (325, 63148), (650, 31574), (1300, 15787)]