7219220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1249}}^1$

素因数の和:1292

約数の個数: 36

約数和(自身を含む): 16117500

約数和(自身を除く): 8898280

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1249, 1445, 2498, 2890, 4996, 5780, 6245, 12490, 21233, 24980, 42466, 84932, 106165, 212330, 360961, 424660, 721922, 1443844, 1804805, 3609610, 7219220]

約数ペア:

[(1, 7219220), (2, 3609610), (4, 1804805), (5, 1443844), (10, 721922), (17, 424660), (20, 360961), (34, 212330), (68, 106165), (85, 84932), (170, 42466), (289, 24980), (340, 21233), (578, 12490), (1156, 6245), (1249, 5780), (1445, 4996), (2498, 2890)]