19892200

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1259}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 46872000

約数和(自身を除く): 26979800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1259, 1580, 1975, 2518, 3160, 3950, 5036, 6295, 7900, 10072, 12590, 15800, 25180, 31475, 50360, 62950, 99461, 125900, 198922, 251800, 397844, 497305, 795688, 994610, 1989220, 2486525, 3978440, 4973050, 9946100, 19892200]

約数ペア:

[(1, 19892200), (2, 9946100), (4, 4973050), (5, 3978440), (8, 2486525), (10, 1989220), (20, 994610), (25, 795688), (40, 497305), (50, 397844), (79, 251800), (100, 198922), (158, 125900), (200, 99461), (316, 62950), (395, 50360), (632, 31475), (790, 25180), (1259, 15800), (1580, 12590), (1975, 10072), (2518, 7900), (3160, 6295), (3950, 5036)]