28021040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8543}}^1$

素因数の和:8597

約数の個数: 40

約数和(自身を含む): 66745728

約数和(自身を除く): 38724688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 8543, 17086, 34172, 42715, 68344, 85430, 136688, 170860, 341720, 350263, 683440, 700526, 1401052, 1751315, 2802104, 3502630, 5604208, 7005260, 14010520, 28021040]

約数ペア:

[(1, 28021040), (2, 14010520), (4, 7005260), (5, 5604208), (8, 3502630), (10, 2802104), (16, 1751315), (20, 1401052), (40, 700526), (41, 683440), (80, 350263), (82, 341720), (164, 170860), (205, 136688), (328, 85430), (410, 68344), (656, 42715), (820, 34172), (1640, 17086), (3280, 8543)]