80914220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{13999}}^1$

素因数の和:14042

約数の個数: 36

約数和(自身を含む): 180516000

約数和(自身を除く): 99601780

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 13999, 27998, 55996, 69995, 139990, 237983, 279980, 475966, 951932, 1189915, 2379830, 4045711, 4759660, 8091422, 16182844, 20228555, 40457110, 80914220]

約数ペア:

[(1, 80914220), (2, 40457110), (4, 20228555), (5, 16182844), (10, 8091422), (17, 4759660), (20, 4045711), (34, 2379830), (68, 1189915), (85, 951932), (170, 475966), (289, 279980), (340, 237983), (578, 139990), (1156, 69995), (1445, 55996), (2890, 27998), (5780, 13999)]