28046840

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{6553}}^1$

素因数の和:6671

約数の個数: 32

約数和(自身を含む): 63704880

約数和(自身を除く): 35658040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 6553, 13106, 26212, 32765, 52424, 65530, 131060, 262120, 701171, 1402342, 2804684, 3505855, 5609368, 7011710, 14023420, 28046840]

約数ペア:

[(1, 28046840), (2, 14023420), (4, 7011710), (5, 5609368), (8, 3505855), (10, 2804684), (20, 1402342), (40, 701171), (107, 262120), (214, 131060), (428, 65530), (535, 52424), (856, 32765), (1070, 26212), (2140, 13106), (4280, 6553)]