199997180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{14347}}^1$

素因数の和:14414

約数の個数: 48

約数和(自身を含む): 455577696

約数和(自身を除く): 255580516

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1394, 2788, 3485, 6970, 13940, 14347, 28694, 57388, 71735, 143470, 243899, 286940, 487798, 588227, 975596, 1176454, 1219495, 2352908, 2438990, 2941135, 4877980, 5882270, 9999859, 11764540, 19999718, 39999436, 49999295, 99998590, 199997180]

約数ペア:

[(1, 199997180), (2, 99998590), (4, 49999295), (5, 39999436), (10, 19999718), (17, 11764540), (20, 9999859), (34, 5882270), (41, 4877980), (68, 2941135), (82, 2438990), (85, 2352908), (164, 1219495), (170, 1176454), (205, 975596), (340, 588227), (410, 487798), (697, 286940), (820, 243899), (1394, 143470), (2788, 71735), (3485, 57388), (6970, 28694), (13940, 14347)]