86620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 24

約数和(自身を含む): 187488

約数和(自身を除く): 100868

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 244, 284, 305, 355, 610, 710, 1220, 1420, 4331, 8662, 17324, 21655, 43310, 86620]

約数ペア:

[(1, 86620), (2, 43310), (4, 21655), (5, 17324), (10, 8662), (20, 4331), (61, 1420), (71, 1220), (122, 710), (142, 610), (244, 355), (284, 305)]