164405780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 445398912

約数和(自身を除く): 280993132

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 101, 110, 140, 151, 154, 196, 202, 220, 245, 302, 308, 385, 404, 490, 505, 539, 604, 707, 755, 770, 980, 1010, 1057, 1078, 1111, 1414, 1510, 1540, 1661, 2020, 2114, 2156, 2222, 2695, 2828, 3020, 3322, 3535, 4228, 4444, 4949, 5285, 5390, 5555, 6644, 7070, 7399, 7777, 8305, 9898, 10570, 10780, 11110, 11627, 14140, 14798, 15251, 15554, 16610, 19796, 21140, 22220, 23254, 24745, 29596, 30502, 31108, 33220, 36995, 38885, 46508, 49490, 54439, 58135, 61004, 73990, 76255, 77770, 81389, 98980, 106757, 108878, 116270, 147980, 152510, 155540, 162778, 167761, 213514, 217756, 232540, 272195, 305020, 325556, 335522, 406945, 427028, 533785, 544390, 671044, 747299, 813890, 838805, 1067570, 1088780, 1174327, 1494598, 1627780, 1677610, 2135140, 2348654, 2989196, 3355220, 3736495, 4697308, 5871635, 7472990, 8220289, 11743270, 14945980, 16440578, 23486540, 32881156, 41101445, 82202890, 164405780]

約数ペア:

[(1, 164405780), (2, 82202890), (4, 41101445), (5, 32881156), (7, 23486540), (10, 16440578), (11, 14945980), (14, 11743270), (20, 8220289), (22, 7472990), (28, 5871635), (35, 4697308), (44, 3736495), (49, 3355220), (55, 2989196), (70, 2348654), (77, 2135140), (98, 1677610), (101, 1627780), (110, 1494598), (140, 1174327), (151, 1088780), (154, 1067570), (196, 838805), (202, 813890), (220, 747299), (245, 671044), (302, 544390), (308, 533785), (385, 427028), (404, 406945), (490, 335522), (505, 325556), (539, 305020), (604, 272195), (707, 232540), (755, 217756), (770, 213514), (980, 167761), (1010, 162778), (1057, 155540), (1078, 152510), (1111, 147980), (1414, 116270), (1510, 108878), (1540, 106757), (1661, 98980), (2020, 81389), (2114, 77770), (2156, 76255), (2222, 73990), (2695, 61004), (2828, 58135), (3020, 54439), (3322, 49490), (3535, 46508), (4228, 38885), (4444, 36995), (4949, 33220), (5285, 31108), (5390, 30502), (5555, 29596), (6644, 24745), (7070, 23254), (7399, 22220), (7777, 21140), (8305, 19796), (9898, 16610), (10570, 15554), (10780, 15251), (11110, 14798), (11627, 14140)]