71918360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{41813}}^1$

素因数の和:41867

約数の個数: 32

約数和(自身を含む): 165583440

約数和(自身を除く): 93665080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 41813, 83626, 167252, 209065, 334504, 418130, 836260, 1672520, 1797959, 3595918, 7191836, 8989795, 14383672, 17979590, 35959180, 71918360]

約数ペア:

[(1, 71918360), (2, 35959180), (4, 17979590), (5, 14383672), (8, 8989795), (10, 7191836), (20, 3595918), (40, 1797959), (43, 1672520), (86, 836260), (172, 418130), (215, 334504), (344, 209065), (430, 167252), (860, 83626), (1720, 41813)]