18865240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27743}}^1$

素因数の和:27771

約数の個数: 32

約数和(自身を含む): 44945280

約数和(自身を除く): 26080040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27743, 55486, 110972, 138715, 221944, 277430, 471631, 554860, 943262, 1109720, 1886524, 2358155, 3773048, 4716310, 9432620, 18865240]

約数ペア:

[(1, 18865240), (2, 9432620), (4, 4716310), (5, 3773048), (8, 2358155), (10, 1886524), (17, 1109720), (20, 943262), (34, 554860), (40, 471631), (68, 277430), (85, 221944), (136, 138715), (170, 110972), (340, 55486), (680, 27743)]