19715940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1259}}^1$

素因数の和:1306

約数の個数: 96

約数和(自身を含む): 63504000

約数和(自身を除く): 43788060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 87, 90, 108, 116, 135, 145, 174, 180, 261, 270, 290, 348, 435, 522, 540, 580, 783, 870, 1044, 1259, 1305, 1566, 1740, 2518, 2610, 3132, 3777, 3915, 5036, 5220, 6295, 7554, 7830, 11331, 12590, 15108, 15660, 18885, 22662, 25180, 33993, 36511, 37770, 45324, 56655, 67986, 73022, 75540, 109533, 113310, 135972, 146044, 169965, 182555, 219066, 226620, 328599, 339930, 365110, 438132, 547665, 657198, 679860, 730220, 985797, 1095330, 1314396, 1642995, 1971594, 2190660, 3285990, 3943188, 4928985, 6571980, 9857970, 19715940]

約数ペア:

[(1, 19715940), (2, 9857970), (3, 6571980), (4, 4928985), (5, 3943188), (6, 3285990), (9, 2190660), (10, 1971594), (12, 1642995), (15, 1314396), (18, 1095330), (20, 985797), (27, 730220), (29, 679860), (30, 657198), (36, 547665), (45, 438132), (54, 365110), (58, 339930), (60, 328599), (87, 226620), (90, 219066), (108, 182555), (116, 169965), (135, 146044), (145, 135972), (174, 113310), (180, 109533), (261, 75540), (270, 73022), (290, 67986), (348, 56655), (435, 45324), (522, 37770), (540, 36511), (580, 33993), (783, 25180), (870, 22662), (1044, 18885), (1259, 15660), (1305, 15108), (1566, 12590), (1740, 11331), (2518, 7830), (2610, 7554), (3132, 6295), (3777, 5220), (3915, 5036)]