19666680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:389

約数の個数: 128

約数和(自身を含む): 65940480

約数和(自身を除く): 46273800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 47, 55, 60, 66, 88, 94, 110, 120, 132, 141, 165, 188, 220, 235, 264, 282, 317, 330, 376, 440, 470, 517, 564, 634, 660, 705, 940, 951, 1034, 1128, 1268, 1320, 1410, 1551, 1585, 1880, 1902, 2068, 2536, 2585, 2820, 3102, 3170, 3487, 3804, 4136, 4755, 5170, 5640, 6204, 6340, 6974, 7608, 7755, 9510, 10340, 10461, 12408, 12680, 13948, 14899, 15510, 17435, 19020, 20680, 20922, 27896, 29798, 31020, 34870, 38040, 41844, 44697, 52305, 59596, 62040, 69740, 74495, 83688, 89394, 104610, 119192, 139480, 148990, 163889, 178788, 209220, 223485, 297980, 327778, 357576, 418440, 446970, 491667, 595960, 655556, 819445, 893940, 983334, 1311112, 1638890, 1787880, 1966668, 2458335, 3277780, 3933336, 4916670, 6555560, 9833340, 19666680]

約数ペア:

[(1, 19666680), (2, 9833340), (3, 6555560), (4, 4916670), (5, 3933336), (6, 3277780), (8, 2458335), (10, 1966668), (11, 1787880), (12, 1638890), (15, 1311112), (20, 983334), (22, 893940), (24, 819445), (30, 655556), (33, 595960), (40, 491667), (44, 446970), (47, 418440), (55, 357576), (60, 327778), (66, 297980), (88, 223485), (94, 209220), (110, 178788), (120, 163889), (132, 148990), (141, 139480), (165, 119192), (188, 104610), (220, 89394), (235, 83688), (264, 74495), (282, 69740), (317, 62040), (330, 59596), (376, 52305), (440, 44697), (470, 41844), (517, 38040), (564, 34870), (634, 31020), (660, 29798), (705, 27896), (940, 20922), (951, 20680), (1034, 19020), (1128, 17435), (1268, 15510), (1320, 14899), (1410, 13948), (1551, 12680), (1585, 12408), (1880, 10461), (1902, 10340), (2068, 9510), (2536, 7755), (2585, 7608), (2820, 6974), (3102, 6340), (3170, 6204), (3487, 5640), (3804, 5170), (4136, 4755)]