20319208

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 50068800

約数和(自身を除く): 29749592

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 76, 91, 104, 113, 133, 152, 169, 182, 226, 247, 266, 338, 364, 452, 494, 532, 676, 728, 791, 904, 988, 1064, 1183, 1352, 1469, 1582, 1729, 1976, 2147, 2366, 2938, 3164, 3211, 3458, 4294, 4732, 5876, 6328, 6422, 6916, 8588, 9464, 10283, 11752, 12844, 13832, 15029, 17176, 19097, 20566, 22477, 25688, 27911, 30058, 38194, 41132, 44954, 55822, 60116, 76388, 82264, 89908, 111644, 120232, 133679, 152776, 179816, 195377, 223288, 267358, 362843, 390754, 534716, 725686, 781508, 1069432, 1451372, 1563016, 2539901, 2902744, 5079802, 10159604, 20319208]

約数ペア:

[(1, 20319208), (2, 10159604), (4, 5079802), (7, 2902744), (8, 2539901), (13, 1563016), (14, 1451372), (19, 1069432), (26, 781508), (28, 725686), (38, 534716), (52, 390754), (56, 362843), (76, 267358), (91, 223288), (104, 195377), (113, 179816), (133, 152776), (152, 133679), (169, 120232), (182, 111644), (226, 89908), (247, 82264), (266, 76388), (338, 60116), (364, 55822), (452, 44954), (494, 41132), (532, 38194), (676, 30058), (728, 27911), (791, 25688), (904, 22477), (988, 20566), (1064, 19097), (1183, 17176), (1352, 15029), (1469, 13832), (1582, 12844), (1729, 11752), (1976, 10283), (2147, 9464), (2366, 8588), (2938, 6916), (3164, 6422), (3211, 6328), (3458, 5876), (4294, 4732)]