19790992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 45465840

約数和(自身を除く): 25674848

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 29, 34, 52, 58, 68, 104, 116, 136, 193, 208, 221, 232, 272, 377, 386, 442, 464, 493, 754, 772, 884, 986, 1508, 1544, 1768, 1972, 2509, 3016, 3088, 3281, 3536, 3944, 5018, 5597, 6032, 6409, 6562, 7888, 10036, 11194, 12818, 13124, 20072, 22388, 25636, 26248, 40144, 42653, 44776, 51272, 52496, 72761, 85306, 89552, 95149, 102544, 145522, 170612, 190298, 291044, 341224, 380596, 582088, 682448, 761192, 1164176, 1236937, 1522384, 2473874, 4947748, 9895496, 19790992]

約数ペア:

[(1, 19790992), (2, 9895496), (4, 4947748), (8, 2473874), (13, 1522384), (16, 1236937), (17, 1164176), (26, 761192), (29, 682448), (34, 582088), (52, 380596), (58, 341224), (68, 291044), (104, 190298), (116, 170612), (136, 145522), (193, 102544), (208, 95149), (221, 89552), (232, 85306), (272, 72761), (377, 52496), (386, 51272), (442, 44776), (464, 42653), (493, 40144), (754, 26248), (772, 25636), (884, 22388), (986, 20072), (1508, 13124), (1544, 12818), (1768, 11194), (1972, 10036), (2509, 7888), (3016, 6562), (3088, 6409), (3281, 6032), (3536, 5597), (3944, 5018)]