256201400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2011}}^1$

素因数の和:2054

約数の個数: 144

約数和(自身を含む): 746592840

約数和(自身を除く): 490391440

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 49, 50, 52, 56, 65, 70, 91, 98, 100, 104, 130, 140, 175, 182, 196, 200, 245, 260, 280, 325, 350, 364, 392, 455, 490, 520, 637, 650, 700, 728, 910, 980, 1225, 1274, 1300, 1400, 1820, 1960, 2011, 2275, 2450, 2548, 2600, 3185, 3640, 4022, 4550, 4900, 5096, 6370, 8044, 9100, 9800, 10055, 12740, 14077, 15925, 16088, 18200, 20110, 25480, 26143, 28154, 31850, 40220, 50275, 52286, 56308, 63700, 70385, 80440, 98539, 100550, 104572, 112616, 127400, 130715, 140770, 183001, 197078, 201100, 209144, 261430, 281540, 351925, 366002, 394156, 402200, 492695, 522860, 563080, 653575, 703850, 732004, 788312, 915005, 985390, 1045720, 1281007, 1307150, 1407700, 1464008, 1830010, 1970780, 2463475, 2562014, 2614300, 2815400, 3660020, 3941560, 4575025, 4926950, 5124028, 5228600, 6405035, 7320040, 9150050, 9853900, 10248056, 12810070, 18300100, 19707800, 25620140, 32025175, 36600200, 51240280, 64050350, 128100700, 256201400]

約数ペア:

[(1, 256201400), (2, 128100700), (4, 64050350), (5, 51240280), (7, 36600200), (8, 32025175), (10, 25620140), (13, 19707800), (14, 18300100), (20, 12810070), (25, 10248056), (26, 9853900), (28, 9150050), (35, 7320040), (40, 6405035), (49, 5228600), (50, 5124028), (52, 4926950), (56, 4575025), (65, 3941560), (70, 3660020), (91, 2815400), (98, 2614300), (100, 2562014), (104, 2463475), (130, 1970780), (140, 1830010), (175, 1464008), (182, 1407700), (196, 1307150), (200, 1281007), (245, 1045720), (260, 985390), (280, 915005), (325, 788312), (350, 732004), (364, 703850), (392, 653575), (455, 563080), (490, 522860), (520, 492695), (637, 402200), (650, 394156), (700, 366002), (728, 351925), (910, 281540), (980, 261430), (1225, 209144), (1274, 201100), (1300, 197078), (1400, 183001), (1820, 140770), (1960, 130715), (2011, 127400), (2275, 112616), (2450, 104572), (2548, 100550), (2600, 98539), (3185, 80440), (3640, 70385), (4022, 63700), (4550, 56308), (4900, 52286), (5096, 50275), (6370, 40220), (8044, 31850), (9100, 28154), (9800, 26143), (10055, 25480), (12740, 20110), (14077, 18200), (15925, 16088)]