20343544

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{367}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 42426720

約数和(自身を除く): 22083176

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 169, 328, 338, 367, 533, 676, 734, 1066, 1352, 1468, 2132, 2936, 4264, 4771, 6929, 9542, 13858, 15047, 19084, 27716, 30094, 38168, 55432, 60188, 62023, 120376, 124046, 195611, 248092, 391222, 496184, 782444, 1564888, 2542943, 5085886, 10171772, 20343544]

約数ペア:

[(1, 20343544), (2, 10171772), (4, 5085886), (8, 2542943), (13, 1564888), (26, 782444), (41, 496184), (52, 391222), (82, 248092), (104, 195611), (164, 124046), (169, 120376), (328, 62023), (338, 60188), (367, 55432), (533, 38168), (676, 30094), (734, 27716), (1066, 19084), (1352, 15047), (1468, 13858), (2132, 9542), (2936, 6929), (4264, 4771)]