9942500

素因数分解:

$2^2\times 5^4\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:162

約数の個数: 60

約数和(自身を含む): 22502172

約数和(自身を除く): 12559672

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 97, 100, 125, 164, 194, 205, 250, 388, 410, 485, 500, 625, 820, 970, 1025, 1250, 1940, 2050, 2425, 2500, 3977, 4100, 4850, 5125, 7954, 9700, 10250, 12125, 15908, 19885, 20500, 24250, 25625, 39770, 48500, 51250, 60625, 79540, 99425, 102500, 121250, 198850, 242500, 397700, 497125, 994250, 1988500, 2485625, 4971250, 9942500]

約数ペア:

[(1, 9942500), (2, 4971250), (4, 2485625), (5, 1988500), (10, 994250), (20, 497125), (25, 397700), (41, 242500), (50, 198850), (82, 121250), (97, 102500), (100, 99425), (125, 79540), (164, 60625), (194, 51250), (205, 48500), (250, 39770), (388, 25625), (410, 24250), (485, 20500), (500, 19885), (625, 15908), (820, 12125), (970, 10250), (1025, 9700), (1250, 7954), (1940, 5125), (2050, 4850), (2425, 4100), (2500, 3977)]