81429400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31319}}^1$

素因数の和:31348

約数の個数: 48

約数和(自身を含む): 203893200

約数和(自身を除く): 122463800

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, 31319, 62638, 125276, 156595, 250552, 313190, 407147, 626380, 782975, 814294, 1252760, 1565950, 1628588, 2035735, 3131900, 3257176, 4071470, 6263800, 8142940, 10178675, 16285880, 20357350, 40714700, 81429400]

約数ペア:

[(1, 81429400), (2, 40714700), (4, 20357350), (5, 16285880), (8, 10178675), (10, 8142940), (13, 6263800), (20, 4071470), (25, 3257176), (26, 3131900), (40, 2035735), (50, 1628588), (52, 1565950), (65, 1252760), (100, 814294), (104, 782975), (130, 626380), (200, 407147), (260, 313190), (325, 250552), (520, 156595), (650, 125276), (1300, 62638), (2600, 31319)]