20382128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:190

約数の個数: 80

約数和(自身を含む): 45830400

約数和(自身を除く): 25448272

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 31, 52, 58, 62, 104, 109, 116, 124, 208, 218, 232, 248, 377, 403, 436, 464, 496, 754, 806, 872, 899, 1417, 1508, 1612, 1744, 1798, 2834, 3016, 3161, 3224, 3379, 3596, 5668, 6032, 6322, 6448, 6758, 7192, 11336, 11687, 12644, 13516, 14384, 22672, 23374, 25288, 27032, 41093, 43927, 46748, 50576, 54064, 82186, 87854, 93496, 97991, 164372, 175708, 186992, 195982, 328744, 351416, 391964, 657488, 702832, 783928, 1273883, 1567856, 2547766, 5095532, 10191064, 20382128]

約数ペア:

[(1, 20382128), (2, 10191064), (4, 5095532), (8, 2547766), (13, 1567856), (16, 1273883), (26, 783928), (29, 702832), (31, 657488), (52, 391964), (58, 351416), (62, 328744), (104, 195982), (109, 186992), (116, 175708), (124, 164372), (208, 97991), (218, 93496), (232, 87854), (248, 82186), (377, 54064), (403, 50576), (436, 46748), (464, 43927), (496, 41093), (754, 27032), (806, 25288), (872, 23374), (899, 22672), (1417, 14384), (1508, 13516), (1612, 12644), (1744, 11687), (1798, 11336), (2834, 7192), (3016, 6758), (3161, 6448), (3224, 6322), (3379, 6032), (3596, 5668)]