7954000

素因数分解:

$2^4\times 5^3\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:161

約数の個数: 80

約数和(自身を含む): 19904976

約数和(自身を除く): 11950976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 97, 100, 125, 164, 194, 200, 205, 250, 328, 388, 400, 410, 485, 500, 656, 776, 820, 970, 1000, 1025, 1552, 1640, 1940, 2000, 2050, 2425, 3280, 3880, 3977, 4100, 4850, 5125, 7760, 7954, 8200, 9700, 10250, 12125, 15908, 16400, 19400, 19885, 20500, 24250, 31816, 38800, 39770, 41000, 48500, 63632, 79540, 82000, 97000, 99425, 159080, 194000, 198850, 318160, 397700, 497125, 795400, 994250, 1590800, 1988500, 3977000, 7954000]

約数ペア:

[(1, 7954000), (2, 3977000), (4, 1988500), (5, 1590800), (8, 994250), (10, 795400), (16, 497125), (20, 397700), (25, 318160), (40, 198850), (41, 194000), (50, 159080), (80, 99425), (82, 97000), (97, 82000), (100, 79540), (125, 63632), (164, 48500), (194, 41000), (200, 39770), (205, 38800), (250, 31816), (328, 24250), (388, 20500), (400, 19885), (410, 19400), (485, 16400), (500, 15908), (656, 12125), (776, 10250), (820, 9700), (970, 8200), (1000, 7954), (1025, 7760), (1552, 5125), (1640, 4850), (1940, 4100), (2000, 3977), (2050, 3880), (2425, 3280)]