67628920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{23813}}^1$

素因数の和:23895

約数の個数: 32

約数和(自身を含む): 154314720

約数和(自身を除く): 86685800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 23813, 47626, 95252, 119065, 190504, 238130, 476260, 952520, 1690723, 3381446, 6762892, 8453615, 13525784, 16907230, 33814460, 67628920]

約数ペア:

[(1, 67628920), (2, 33814460), (4, 16907230), (5, 13525784), (8, 8453615), (10, 6762892), (20, 3381446), (40, 1690723), (71, 952520), (142, 476260), (284, 238130), (355, 190504), (568, 119065), (710, 95252), (1420, 47626), (2840, 23813)]