18972200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7297}}^1$

素因数の和:7326

約数の個数: 48

約数和(自身を含む): 47509980

約数和(自身を除く): 28537780

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7297, 14594, 29188, 36485, 58376, 72970, 94861, 145940, 182425, 189722, 291880, 364850, 379444, 474305, 729700, 758888, 948610, 1459400, 1897220, 2371525, 3794440, 4743050, 9486100, 18972200]

約数ペア:

[(1, 18972200), (2, 9486100), (4, 4743050), (5, 3794440), (8, 2371525), (10, 1897220), (13, 1459400), (20, 948610), (25, 758888), (26, 729700), (40, 474305), (50, 379444), (52, 364850), (65, 291880), (100, 189722), (104, 182425), (130, 145940), (200, 94861), (260, 72970), (325, 58376), (520, 36485), (650, 29188), (1300, 14594), (2600, 7297)]