53998880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1997}}^1$

素因数の和:2038

約数の個数: 72

約数和(自身を含む): 138209652

約数和(自身を除く): 84210772

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1690, 1997, 2080, 2704, 3380, 3994, 5408, 6760, 7988, 9985, 13520, 15976, 19970, 25961, 27040, 31952, 39940, 51922, 63904, 79880, 103844, 129805, 159760, 207688, 259610, 319520, 337493, 415376, 519220, 674986, 830752, 1038440, 1349972, 1687465, 2076880, 2699944, 3374930, 4153760, 5399888, 6749860, 10799776, 13499720, 26999440, 53998880]

約数ペア:

[(1, 53998880), (2, 26999440), (4, 13499720), (5, 10799776), (8, 6749860), (10, 5399888), (13, 4153760), (16, 3374930), (20, 2699944), (26, 2076880), (32, 1687465), (40, 1349972), (52, 1038440), (65, 830752), (80, 674986), (104, 519220), (130, 415376), (160, 337493), (169, 319520), (208, 259610), (260, 207688), (338, 159760), (416, 129805), (520, 103844), (676, 79880), (845, 63904), (1040, 51922), (1352, 39940), (1690, 31952), (1997, 27040), (2080, 25961), (2704, 19970), (3380, 15976), (3994, 13520), (5408, 9985), (6760, 7988)]