201997400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{491}}^1$

素因数の和:546

約数の個数: 144

約数和(自身を含む): 547699320

約数和(自身を除く): 345701920

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 25, 34, 40, 44, 50, 55, 68, 85, 88, 100, 110, 121, 136, 170, 187, 200, 220, 242, 275, 340, 374, 425, 440, 484, 491, 550, 605, 680, 748, 850, 935, 968, 982, 1100, 1210, 1496, 1700, 1870, 1964, 2057, 2200, 2420, 2455, 3025, 3400, 3740, 3928, 4114, 4675, 4840, 4910, 5401, 6050, 7480, 8228, 8347, 9350, 9820, 10285, 10802, 12100, 12275, 16456, 16694, 18700, 19640, 20570, 21604, 24200, 24550, 27005, 33388, 37400, 41140, 41735, 43208, 49100, 51425, 54010, 59411, 66776, 82280, 83470, 91817, 98200, 102850, 108020, 118822, 135025, 166940, 183634, 205700, 208675, 216040, 237644, 270050, 297055, 333880, 367268, 411400, 417350, 459085, 475288, 540100, 594110, 734536, 834700, 918170, 1009987, 1080200, 1188220, 1485275, 1669400, 1836340, 2019974, 2295425, 2376440, 2970550, 3672680, 4039948, 4590850, 5049935, 5941100, 8079896, 9181700, 10099870, 11882200, 18363400, 20199740, 25249675, 40399480, 50499350, 100998700, 201997400]

約数ペア:

[(1, 201997400), (2, 100998700), (4, 50499350), (5, 40399480), (8, 25249675), (10, 20199740), (11, 18363400), (17, 11882200), (20, 10099870), (22, 9181700), (25, 8079896), (34, 5941100), (40, 5049935), (44, 4590850), (50, 4039948), (55, 3672680), (68, 2970550), (85, 2376440), (88, 2295425), (100, 2019974), (110, 1836340), (121, 1669400), (136, 1485275), (170, 1188220), (187, 1080200), (200, 1009987), (220, 918170), (242, 834700), (275, 734536), (340, 594110), (374, 540100), (425, 475288), (440, 459085), (484, 417350), (491, 411400), (550, 367268), (605, 333880), (680, 297055), (748, 270050), (850, 237644), (935, 216040), (968, 208675), (982, 205700), (1100, 183634), (1210, 166940), (1496, 135025), (1700, 118822), (1870, 108020), (1964, 102850), (2057, 98200), (2200, 91817), (2420, 83470), (2455, 82280), (3025, 66776), (3400, 59411), (3740, 54010), (3928, 51425), (4114, 49100), (4675, 43208), (4840, 41735), (4910, 41140), (5401, 37400), (6050, 33388), (7480, 27005), (8228, 24550), (8347, 24200), (9350, 21604), (9820, 20570), (10285, 19640), (10802, 18700), (12100, 16694), (12275, 16456)]