669500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:135

約数の個数: 48

約数和(自身を含む): 1589952

約数和(自身を除く): 920452

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 103, 125, 130, 206, 250, 260, 325, 412, 500, 515, 650, 1030, 1300, 1339, 1625, 2060, 2575, 2678, 3250, 5150, 5356, 6500, 6695, 10300, 12875, 13390, 25750, 26780, 33475, 51500, 66950, 133900, 167375, 334750, 669500]

約数ペア:

[(1, 669500), (2, 334750), (4, 167375), (5, 133900), (10, 66950), (13, 51500), (20, 33475), (25, 26780), (26, 25750), (50, 13390), (52, 12875), (65, 10300), (100, 6695), (103, 6500), (125, 5356), (130, 5150), (206, 3250), (250, 2678), (260, 2575), (325, 2060), (412, 1625), (500, 1339), (515, 1300), (650, 1030)]