826645640

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1\times {\mathrm{829}}^1$

素因数の和:1194

約数の個数: 64

約数和(自身を含む): 1888714800

約数和(自身を除く): 1062069160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 257, 388, 485, 514, 776, 829, 970, 1028, 1285, 1658, 1940, 2056, 2570, 3316, 3880, 4145, 5140, 6632, 8290, 10280, 16580, 24929, 33160, 49858, 80413, 99716, 124645, 160826, 199432, 213053, 249290, 321652, 402065, 426106, 498580, 643304, 804130, 852212, 997160, 1065265, 1608260, 1704424, 2130530, 3216520, 4261060, 8522120, 20666141, 41332282, 82664564, 103330705, 165329128, 206661410, 413322820, 826645640]

約数ペア:

[(1, 826645640), (2, 413322820), (4, 206661410), (5, 165329128), (8, 103330705), (10, 82664564), (20, 41332282), (40, 20666141), (97, 8522120), (194, 4261060), (257, 3216520), (388, 2130530), (485, 1704424), (514, 1608260), (776, 1065265), (829, 997160), (970, 852212), (1028, 804130), (1285, 643304), (1658, 498580), (1940, 426106), (2056, 402065), (2570, 321652), (3316, 249290), (3880, 213053), (4145, 199432), (5140, 160826), (6632, 124645), (8290, 99716), (10280, 80413), (16580, 49858), (24929, 33160)]