18922910

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 35294400

約数和(自身を除く): 16371490

約数列:

[1, 2, 5, 10, 37, 74, 185, 199, 257, 370, 398, 514, 995, 1285, 1990, 2570, 7363, 9509, 14726, 19018, 36815, 47545, 51143, 73630, 95090, 102286, 255715, 511430, 1892291, 3784582, 9461455, 18922910]

約数ペア:

[(1, 18922910), (2, 9461455), (5, 3784582), (10, 1892291), (37, 511430), (74, 255715), (185, 102286), (199, 95090), (257, 73630), (370, 51143), (398, 47545), (514, 36815), (995, 19018), (1285, 14726), (1990, 9509), (2570, 7363)]