18486250

素因数分解:

$2^1\times 5^4\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:688

約数の個数: 40

約数和(自身を含む): 36213408

約数和(自身を除く): 17727158

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 125, 230, 250, 575, 625, 643, 1150, 1250, 1286, 2875, 3215, 5750, 6430, 14375, 14789, 16075, 28750, 29578, 32150, 73945, 80375, 147890, 160750, 369725, 401875, 739450, 803750, 1848625, 3697250, 9243125, 18486250]

約数ペア:

[(1, 18486250), (2, 9243125), (5, 3697250), (10, 1848625), (23, 803750), (25, 739450), (46, 401875), (50, 369725), (115, 160750), (125, 147890), (230, 80375), (250, 73945), (575, 32150), (625, 29578), (643, 28750), (1150, 16075), (1250, 14789), (1286, 14375), (2875, 6430), (3215, 5750)]