210778900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{811}}^1$

素因数の和:961

約数の個数: 72

約数和(自身を含む): 482094144

約数和(自身を除く): 271315244

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 113, 115, 226, 230, 452, 460, 565, 575, 811, 1130, 1150, 1622, 2260, 2300, 2599, 2825, 3244, 4055, 5198, 5650, 8110, 10396, 11300, 12995, 16220, 18653, 20275, 25990, 37306, 40550, 51980, 64975, 74612, 81100, 91643, 93265, 129950, 183286, 186530, 259900, 366572, 373060, 458215, 466325, 916430, 932650, 1832860, 1865300, 2107789, 2291075, 4215578, 4582150, 8431156, 9164300, 10538945, 21077890, 42155780, 52694725, 105389450, 210778900]

約数ペア:

[(1, 210778900), (2, 105389450), (4, 52694725), (5, 42155780), (10, 21077890), (20, 10538945), (23, 9164300), (25, 8431156), (46, 4582150), (50, 4215578), (92, 2291075), (100, 2107789), (113, 1865300), (115, 1832860), (226, 932650), (230, 916430), (452, 466325), (460, 458215), (565, 373060), (575, 366572), (811, 259900), (1130, 186530), (1150, 183286), (1622, 129950), (2260, 93265), (2300, 91643), (2599, 81100), (2825, 74612), (3244, 64975), (4055, 51980), (5198, 40550), (5650, 37306), (8110, 25990), (10396, 20275), (11300, 18653), (12995, 16220)]