19775216

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:186

約数の個数: 80

約数和(自身を含む): 44193600

約数和(自身を除く): 24418384

約数列:

[1, 2, 4, 8, 16, 17, 23, 29, 34, 46, 58, 68, 92, 109, 116, 136, 184, 218, 232, 272, 368, 391, 436, 464, 493, 667, 782, 872, 986, 1334, 1564, 1744, 1853, 1972, 2507, 2668, 3128, 3161, 3706, 3944, 5014, 5336, 6256, 6322, 7412, 7888, 10028, 10672, 11339, 12644, 14824, 20056, 22678, 25288, 29648, 40112, 42619, 45356, 50576, 53737, 72703, 85238, 90712, 107474, 145406, 170476, 181424, 214948, 290812, 340952, 429896, 581624, 681904, 859792, 1163248, 1235951, 2471902, 4943804, 9887608, 19775216]

約数ペア:

[(1, 19775216), (2, 9887608), (4, 4943804), (8, 2471902), (16, 1235951), (17, 1163248), (23, 859792), (29, 681904), (34, 581624), (46, 429896), (58, 340952), (68, 290812), (92, 214948), (109, 181424), (116, 170476), (136, 145406), (184, 107474), (218, 90712), (232, 85238), (272, 72703), (368, 53737), (391, 50576), (436, 45356), (464, 42619), (493, 40112), (667, 29648), (782, 25288), (872, 22678), (986, 20056), (1334, 14824), (1564, 12644), (1744, 11339), (1853, 10672), (1972, 10028), (2507, 7888), (2668, 7412), (3128, 6322), (3161, 6256), (3706, 5336), (3944, 5014)]