20049484

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 45911040

約数和(自身を除く): 25861556

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 169, 182, 223, 247, 266, 338, 364, 446, 494, 532, 676, 892, 988, 1183, 1561, 1729, 2366, 2899, 3122, 3211, 3458, 4237, 4732, 5798, 6244, 6422, 6916, 8474, 11596, 12844, 16948, 20293, 22477, 29659, 37687, 40586, 44954, 55081, 59318, 75374, 81172, 89908, 110162, 118636, 150748, 220324, 263809, 385567, 527618, 716053, 771134, 1055236, 1432106, 1542268, 2864212, 5012371, 10024742, 20049484]

約数ペア:

[(1, 20049484), (2, 10024742), (4, 5012371), (7, 2864212), (13, 1542268), (14, 1432106), (19, 1055236), (26, 771134), (28, 716053), (38, 527618), (52, 385567), (76, 263809), (91, 220324), (133, 150748), (169, 118636), (182, 110162), (223, 89908), (247, 81172), (266, 75374), (338, 59318), (364, 55081), (446, 44954), (494, 40586), (532, 37687), (676, 29659), (892, 22477), (988, 20293), (1183, 16948), (1561, 12844), (1729, 11596), (2366, 8474), (2899, 6916), (3122, 6422), (3211, 6244), (3458, 5798), (4237, 4732)]