8431240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 20003760

約数和(自身を除く): 11572520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 97, 106, 164, 194, 205, 212, 265, 328, 388, 410, 424, 485, 530, 776, 820, 970, 1060, 1640, 1940, 2120, 2173, 3880, 3977, 4346, 5141, 7954, 8692, 10282, 10865, 15908, 17384, 19885, 20564, 21730, 25705, 31816, 39770, 41128, 43460, 51410, 79540, 86920, 102820, 159080, 205640, 210781, 421562, 843124, 1053905, 1686248, 2107810, 4215620, 8431240]

約数ペア:

[(1, 8431240), (2, 4215620), (4, 2107810), (5, 1686248), (8, 1053905), (10, 843124), (20, 421562), (40, 210781), (41, 205640), (53, 159080), (82, 102820), (97, 86920), (106, 79540), (164, 51410), (194, 43460), (205, 41128), (212, 39770), (265, 31816), (328, 25705), (388, 21730), (410, 20564), (424, 19885), (485, 17384), (530, 15908), (776, 10865), (820, 10282), (970, 8692), (1060, 7954), (1640, 5141), (1940, 4346), (2120, 3977), (2173, 3880)]