201426320

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:468

約数の個数: 80

約数和(自身を含む): 479688048

約数和(自身を除く): 278261728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 101, 194, 202, 257, 388, 404, 485, 505, 514, 776, 808, 970, 1010, 1028, 1285, 1552, 1616, 1940, 2020, 2056, 2570, 3880, 4040, 4112, 5140, 7760, 8080, 9797, 10280, 19594, 20560, 24929, 25957, 39188, 48985, 49858, 51914, 78376, 97970, 99716, 103828, 124645, 129785, 156752, 195940, 199432, 207656, 249290, 259570, 391880, 398864, 415312, 498580, 519140, 783760, 997160, 1038280, 1994320, 2076560, 2517829, 5035658, 10071316, 12589145, 20142632, 25178290, 40285264, 50356580, 100713160, 201426320]

約数ペア:

[(1, 201426320), (2, 100713160), (4, 50356580), (5, 40285264), (8, 25178290), (10, 20142632), (16, 12589145), (20, 10071316), (40, 5035658), (80, 2517829), (97, 2076560), (101, 1994320), (194, 1038280), (202, 997160), (257, 783760), (388, 519140), (404, 498580), (485, 415312), (505, 398864), (514, 391880), (776, 259570), (808, 249290), (970, 207656), (1010, 199432), (1028, 195940), (1285, 156752), (1552, 129785), (1616, 124645), (1940, 103828), (2020, 99716), (2056, 97970), (2570, 78376), (3880, 51914), (4040, 49858), (4112, 48985), (5140, 39188), (7760, 25957), (8080, 24929), (9797, 20560), (10280, 19594)]