28478740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83761}}^1$

素因数の和:83787

約数の個数: 24

約数和(自身を含む): 63324072

約数和(自身を除く): 34845332

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 83761, 167522, 335044, 418805, 837610, 1423937, 1675220, 2847874, 5695748, 7119685, 14239370, 28478740]

約数ペア:

[(1, 28478740), (2, 14239370), (4, 7119685), (5, 5695748), (10, 2847874), (17, 1675220), (20, 1423937), (34, 837610), (68, 418805), (85, 335044), (170, 167522), (340, 83761)]