64928660

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{4003}}^1$

素因数の和:4823

約数の個数: 24

約数和(自身を含む): 136552416

約数和(自身を除く): 71623756

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 3244, 4003, 4055, 8006, 8110, 16012, 16220, 20015, 40030, 80060, 3246433, 6492866, 12985732, 16232165, 32464330, 64928660]

約数ペア:

[(1, 64928660), (2, 32464330), (4, 16232165), (5, 12985732), (10, 6492866), (20, 3246433), (811, 80060), (1622, 40030), (3244, 20015), (4003, 16220), (4055, 16012), (8006, 8110)]