28656156680

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6572513}}^1$

素因数の和:6572633

約数の個数: 32

約数和(自身を含む): 65067888600

約数和(自身を除く): 36411731920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 6572513, 13145026, 26290052, 32862565, 52580104, 65725130, 131450260, 262900520, 716403917, 1432807834, 2865615668, 3582019585, 5731231336, 7164039170, 14328078340, 28656156680]

約数ペア:

[(1, 28656156680), (2, 14328078340), (4, 7164039170), (5, 5731231336), (8, 3582019585), (10, 2865615668), (20, 1432807834), (40, 716403917), (109, 262900520), (218, 131450260), (436, 65725130), (545, 52580104), (872, 32862565), (1090, 26290052), (2180, 13145026), (4360, 6572513)]