4456400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{857}}^1$

素因数の和:888

約数の個数: 60

約数和(自身を含む): 11543532

約数和(自身を除く): 7087132

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 857, 1040, 1300, 1714, 2600, 3428, 4285, 5200, 6856, 8570, 11141, 13712, 17140, 21425, 22282, 34280, 42850, 44564, 55705, 68560, 85700, 89128, 111410, 171400, 178256, 222820, 278525, 342800, 445640, 557050, 891280, 1114100, 2228200, 4456400]

約数ペア:

[(1, 4456400), (2, 2228200), (4, 1114100), (5, 891280), (8, 557050), (10, 445640), (13, 342800), (16, 278525), (20, 222820), (25, 178256), (26, 171400), (40, 111410), (50, 89128), (52, 85700), (65, 68560), (80, 55705), (100, 44564), (104, 42850), (130, 34280), (200, 22282), (208, 21425), (260, 17140), (325, 13712), (400, 11141), (520, 8570), (650, 6856), (857, 5200), (1040, 4285), (1300, 3428), (1714, 2600)]