28442840

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{10613}}^1$

素因数の和:10691

約数の個数: 32

約数和(自身を含む): 64957680

約数和(自身を除く): 36514840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 10613, 21226, 42452, 53065, 84904, 106130, 212260, 424520, 711071, 1422142, 2844284, 3555355, 5688568, 7110710, 14221420, 28442840]

約数ペア:

[(1, 28442840), (2, 14221420), (4, 7110710), (5, 5688568), (8, 3555355), (10, 2844284), (20, 1422142), (40, 711071), (67, 424520), (134, 212260), (268, 106130), (335, 84904), (536, 53065), (670, 42452), (1340, 21226), (2680, 10613)]