56521400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21739}}^1$

素因数の和:21768

約数の個数: 48

約数和(自身を含む): 141527400

約数和(自身を除く): 85006000

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, 21739, 43478, 86956, 108695, 173912, 217390, 282607, 434780, 543475, 565214, 869560, 1086950, 1130428, 1413035, 2173900, 2260856, 2826070, 4347800, 5652140, 7065175, 11304280, 14130350, 28260700, 56521400]

約数ペア:

[(1, 56521400), (2, 28260700), (4, 14130350), (5, 11304280), (8, 7065175), (10, 5652140), (13, 4347800), (20, 2826070), (25, 2260856), (26, 2173900), (40, 1413035), (50, 1130428), (52, 1086950), (65, 869560), (100, 565214), (104, 543475), (130, 434780), (200, 282607), (260, 217390), (325, 173912), (520, 108695), (650, 86956), (1300, 43478), (2600, 21739)]