28558840

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{4127}}^1$

素因数の和:4311

約数の個数: 32

約数和(自身を含む): 64644480

約数和(自身を除く): 36085640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 4127, 6920, 8254, 16508, 20635, 33016, 41270, 82540, 165080, 713971, 1427942, 2855884, 3569855, 5711768, 7139710, 14279420, 28558840]

約数ペア:

[(1, 28558840), (2, 14279420), (4, 7139710), (5, 5711768), (8, 3569855), (10, 2855884), (20, 1427942), (40, 713971), (173, 165080), (346, 82540), (692, 41270), (865, 33016), (1384, 20635), (1730, 16508), (3460, 8254), (4127, 6920)]