27820780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8231}}^1$

素因数の和:8266

約数の個数: 36

約数和(自身を含む): 63271152

約数和(自身を除く): 35450372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 8231, 16462, 32924, 41155, 82310, 107003, 164620, 214006, 428012, 535015, 1070030, 1391039, 2140060, 2782078, 5564156, 6955195, 13910390, 27820780]

約数ペア:

[(1, 27820780), (2, 13910390), (4, 6955195), (5, 5564156), (10, 2782078), (13, 2140060), (20, 1391039), (26, 1070030), (52, 535015), (65, 428012), (130, 214006), (169, 164620), (260, 107003), (338, 82310), (676, 41155), (845, 32924), (1690, 16462), (3380, 8231)]