26912840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15647}}^1$

素因数の和:15701

約数の個数: 32

約数和(自身を含む): 61966080

約数和(自身を除く): 35053240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 15647, 31294, 62588, 78235, 125176, 156470, 312940, 625880, 672821, 1345642, 2691284, 3364105, 5382568, 6728210, 13456420, 26912840]

約数ペア:

[(1, 26912840), (2, 13456420), (4, 6728210), (5, 5382568), (8, 3364105), (10, 2691284), (20, 1345642), (40, 672821), (43, 625880), (86, 312940), (172, 156470), (215, 125176), (344, 78235), (430, 62588), (860, 31294), (1720, 15647)]