18497050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1$

素因数の和:248

約数の個数: 72

約数和(自身を含む): 40845600

約数和(自身を除く): 22348550

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 169, 199, 275, 286, 325, 338, 398, 550, 650, 715, 845, 995, 1430, 1690, 1859, 1990, 2189, 2587, 3575, 3718, 4225, 4378, 4975, 5174, 7150, 8450, 9295, 9950, 10945, 12935, 18590, 21890, 25870, 28457, 33631, 46475, 54725, 56914, 64675, 67262, 92950, 109450, 129350, 142285, 168155, 284570, 336310, 369941, 711425, 739882, 840775, 1422850, 1681550, 1849705, 3699410, 9248525, 18497050]

約数ペア:

[(1, 18497050), (2, 9248525), (5, 3699410), (10, 1849705), (11, 1681550), (13, 1422850), (22, 840775), (25, 739882), (26, 711425), (50, 369941), (55, 336310), (65, 284570), (110, 168155), (130, 142285), (143, 129350), (169, 109450), (199, 92950), (275, 67262), (286, 64675), (325, 56914), (338, 54725), (398, 46475), (550, 33631), (650, 28457), (715, 25870), (845, 21890), (995, 18590), (1430, 12935), (1690, 10945), (1859, 9950), (1990, 9295), (2189, 8450), (2587, 7150), (3575, 5174), (3718, 4975), (4225, 4378)]