20034400

素因数分解:

$2^5\times 5^2\times {\mathrm{79}}^1\times {\mathrm{317}}^1$

素因数の和:416

約数の個数: 72

約数和(自身を含む): 49684320

約数和(自身を除く): 29649920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 79, 80, 100, 158, 160, 200, 316, 317, 395, 400, 632, 634, 790, 800, 1264, 1268, 1580, 1585, 1975, 2528, 2536, 3160, 3170, 3950, 5072, 6320, 6340, 7900, 7925, 10144, 12640, 12680, 15800, 15850, 25043, 25360, 31600, 31700, 50086, 50720, 63200, 63400, 100172, 125215, 126800, 200344, 250430, 253600, 400688, 500860, 626075, 801376, 1001720, 1252150, 2003440, 2504300, 4006880, 5008600, 10017200, 20034400]

約数ペア:

[(1, 20034400), (2, 10017200), (4, 5008600), (5, 4006880), (8, 2504300), (10, 2003440), (16, 1252150), (20, 1001720), (25, 801376), (32, 626075), (40, 500860), (50, 400688), (79, 253600), (80, 250430), (100, 200344), (158, 126800), (160, 125215), (200, 100172), (316, 63400), (317, 63200), (395, 50720), (400, 50086), (632, 31700), (634, 31600), (790, 25360), (800, 25043), (1264, 15850), (1268, 15800), (1580, 12680), (1585, 12640), (1975, 10144), (2528, 7925), (2536, 7900), (3160, 6340), (3170, 6320), (3950, 5072)]