19655200

素因数分解:

$2^5\times 5^2\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:410

約数の個数: 72

約数和(自身を含む): 48746880

約数和(自身を除く): 29091680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 79, 80, 100, 158, 160, 200, 311, 316, 395, 400, 622, 632, 790, 800, 1244, 1264, 1555, 1580, 1975, 2488, 2528, 3110, 3160, 3950, 4976, 6220, 6320, 7775, 7900, 9952, 12440, 12640, 15550, 15800, 24569, 24880, 31100, 31600, 49138, 49760, 62200, 63200, 98276, 122845, 124400, 196552, 245690, 248800, 393104, 491380, 614225, 786208, 982760, 1228450, 1965520, 2456900, 3931040, 4913800, 9827600, 19655200]

約数ペア:

[(1, 19655200), (2, 9827600), (4, 4913800), (5, 3931040), (8, 2456900), (10, 1965520), (16, 1228450), (20, 982760), (25, 786208), (32, 614225), (40, 491380), (50, 393104), (79, 248800), (80, 245690), (100, 196552), (158, 124400), (160, 122845), (200, 98276), (311, 63200), (316, 62200), (395, 49760), (400, 49138), (622, 31600), (632, 31100), (790, 24880), (800, 24569), (1244, 15800), (1264, 15550), (1555, 12640), (1580, 12440), (1975, 9952), (2488, 7900), (2528, 7775), (3110, 6320), (3160, 6220), (3950, 4976)]