28236700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 64308384

約数和(自身を除く): 36071684

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 71, 82, 97, 100, 142, 164, 194, 205, 284, 355, 388, 410, 485, 710, 820, 970, 1025, 1420, 1775, 1940, 2050, 2425, 2911, 3550, 3977, 4100, 4850, 5822, 6887, 7100, 7954, 9700, 11644, 13774, 14555, 15908, 19885, 27548, 29110, 34435, 39770, 58220, 68870, 72775, 79540, 99425, 137740, 145550, 172175, 198850, 282367, 291100, 344350, 397700, 564734, 688700, 1129468, 1411835, 2823670, 5647340, 7059175, 14118350, 28236700]

約数ペア:

[(1, 28236700), (2, 14118350), (4, 7059175), (5, 5647340), (10, 2823670), (20, 1411835), (25, 1129468), (41, 688700), (50, 564734), (71, 397700), (82, 344350), (97, 291100), (100, 282367), (142, 198850), (164, 172175), (194, 145550), (205, 137740), (284, 99425), (355, 79540), (388, 72775), (410, 68870), (485, 58220), (710, 39770), (820, 34435), (970, 29110), (1025, 27548), (1420, 19885), (1775, 15908), (1940, 14555), (2050, 13774), (2425, 11644), (2911, 9700), (3550, 7954), (3977, 7100), (4100, 6887), (4850, 5822)]