28781590

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{70199}}^1$

素因数の和:70247

約数の個数: 16

約数和(自身を含む): 53071200

約数和(自身を除く): 24289610

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 70199, 140398, 350995, 701990, 2878159, 5756318, 14390795, 28781590]

約数ペア:

[(1, 28781590), (2, 14390795), (5, 5756318), (10, 2878159), (41, 701990), (82, 350995), (205, 140398), (410, 70199)]