39997940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2503}}^1$

素因数の和:2576

約数の個数: 48

約数和(自身を含む): 90865152

約数和(自身を除く): 50867212

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1598, 2503, 3196, 3995, 5006, 7990, 10012, 12515, 15980, 25030, 42551, 50060, 85102, 117641, 170204, 212755, 235282, 425510, 470564, 588205, 851020, 1176410, 1999897, 2352820, 3999794, 7999588, 9999485, 19998970, 39997940]

約数ペア:

[(1, 39997940), (2, 19998970), (4, 9999485), (5, 7999588), (10, 3999794), (17, 2352820), (20, 1999897), (34, 1176410), (47, 851020), (68, 588205), (85, 470564), (94, 425510), (170, 235282), (188, 212755), (235, 170204), (340, 117641), (470, 85102), (799, 50060), (940, 42551), (1598, 25030), (2503, 15980), (3196, 12515), (3995, 10012), (5006, 7990)]