20563088

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:544

約数の個数: 80

約数和(自身を含む): 50830080

約数和(自身を除く): 30266992

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 29, 52, 56, 58, 91, 104, 112, 116, 182, 203, 208, 232, 364, 377, 406, 464, 487, 728, 754, 812, 974, 1456, 1508, 1624, 1948, 2639, 3016, 3248, 3409, 3896, 5278, 6032, 6331, 6818, 7792, 10556, 12662, 13636, 14123, 21112, 25324, 27272, 28246, 42224, 44317, 50648, 54544, 56492, 88634, 98861, 101296, 112984, 177268, 183599, 197722, 225968, 354536, 367198, 395444, 709072, 734396, 790888, 1285193, 1468792, 1581776, 2570386, 2937584, 5140772, 10281544, 20563088]

約数ペア:

[(1, 20563088), (2, 10281544), (4, 5140772), (7, 2937584), (8, 2570386), (13, 1581776), (14, 1468792), (16, 1285193), (26, 790888), (28, 734396), (29, 709072), (52, 395444), (56, 367198), (58, 354536), (91, 225968), (104, 197722), (112, 183599), (116, 177268), (182, 112984), (203, 101296), (208, 98861), (232, 88634), (364, 56492), (377, 54544), (406, 50648), (464, 44317), (487, 42224), (728, 28246), (754, 27272), (812, 25324), (974, 21112), (1456, 14123), (1508, 13636), (1624, 12662), (1948, 10556), (2639, 7792), (3016, 6818), (3248, 6331), (3409, 6032), (3896, 5278)]