20199106100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{63901}}^1$

素因数の和:64053

約数の個数: 72

約数和(自身を含む): 45760222200

約数和(自身を除く): 25561116100

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 109, 116, 145, 218, 290, 436, 545, 580, 725, 1090, 1450, 2180, 2725, 2900, 3161, 5450, 6322, 10900, 12644, 15805, 31610, 63220, 63901, 79025, 127802, 158050, 255604, 316100, 319505, 639010, 1278020, 1597525, 1853129, 3195050, 3706258, 6390100, 6965209, 7412516, 9265645, 13930418, 18531290, 27860836, 34826045, 37062580, 46328225, 69652090, 92656450, 139304180, 174130225, 185312900, 201991061, 348260450, 403982122, 696520900, 807964244, 1009955305, 2019910610, 4039821220, 5049776525, 10099553050, 20199106100]

約数ペア:

[(1, 20199106100), (2, 10099553050), (4, 5049776525), (5, 4039821220), (10, 2019910610), (20, 1009955305), (25, 807964244), (29, 696520900), (50, 403982122), (58, 348260450), (100, 201991061), (109, 185312900), (116, 174130225), (145, 139304180), (218, 92656450), (290, 69652090), (436, 46328225), (545, 37062580), (580, 34826045), (725, 27860836), (1090, 18531290), (1450, 13930418), (2180, 9265645), (2725, 7412516), (2900, 6965209), (3161, 6390100), (5450, 3706258), (6322, 3195050), (10900, 1853129), (12644, 1597525), (15805, 1278020), (31610, 639010), (63220, 319505), (63901, 316100), (79025, 255604), (127802, 158050)]