20784060

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3499}}^1$

素因数の和:3528

約数の個数: 96

約数和(自身を含む): 70560000

約数和(自身を除く): 49775940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 90, 99, 108, 110, 132, 135, 165, 180, 198, 220, 270, 297, 330, 396, 495, 540, 594, 660, 990, 1188, 1485, 1980, 2970, 3499, 5940, 6998, 10497, 13996, 17495, 20994, 31491, 34990, 38489, 41988, 52485, 62982, 69980, 76978, 94473, 104970, 115467, 125964, 153956, 157455, 188946, 192445, 209940, 230934, 314910, 346401, 377892, 384890, 461868, 472365, 577335, 629820, 692802, 769780, 944730, 1039203, 1154670, 1385604, 1732005, 1889460, 2078406, 2309340, 3464010, 4156812, 5196015, 6928020, 10392030, 20784060]

約数ペア:

[(1, 20784060), (2, 10392030), (3, 6928020), (4, 5196015), (5, 4156812), (6, 3464010), (9, 2309340), (10, 2078406), (11, 1889460), (12, 1732005), (15, 1385604), (18, 1154670), (20, 1039203), (22, 944730), (27, 769780), (30, 692802), (33, 629820), (36, 577335), (44, 472365), (45, 461868), (54, 384890), (55, 377892), (60, 346401), (66, 314910), (90, 230934), (99, 209940), (108, 192445), (110, 188946), (132, 157455), (135, 153956), (165, 125964), (180, 115467), (198, 104970), (220, 94473), (270, 76978), (297, 69980), (330, 62982), (396, 52485), (495, 41988), (540, 38489), (594, 34990), (660, 31491), (990, 20994), (1188, 17495), (1485, 13996), (1980, 10497), (2970, 6998), (3499, 5940)]