20855340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3511}}^1$

素因数の和:3540

約数の個数: 96

約数和(自身を含む): 70801920

約数和(自身を除く): 49946580

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, 3511, 5940, 7022, 10533, 14044, 17555, 21066, 31599, 35110, 38621, 42132, 52665, 63198, 70220, 77242, 94797, 105330, 115863, 126396, 154484, 157995, 189594, 193105, 210660, 231726, 315990, 347589, 379188, 386210, 463452, 473985, 579315, 631980, 695178, 772420, 947970, 1042767, 1158630, 1390356, 1737945, 1895940, 2085534, 2317260, 3475890, 4171068, 5213835, 6951780, 10427670, 20855340]

約数ペア:

[(1, 20855340), (2, 10427670), (3, 6951780), (4, 5213835), (5, 4171068), (6, 3475890), (9, 2317260), (10, 2085534), (11, 1895940), (12, 1737945), (15, 1390356), (18, 1158630), (20, 1042767), (22, 947970), (27, 772420), (30, 695178), (33, 631980), (36, 579315), (44, 473985), (45, 463452), (54, 386210), (55, 379188), (60, 347589), (66, 315990), (90, 231726), (99, 210660), (108, 193105), (110, 189594), (132, 157995), (135, 154484), (165, 126396), (180, 115863), (198, 105330), (220, 94797), (270, 77242), (297, 70220), (330, 63198), (396, 52665), (495, 42132), (540, 38621), (594, 35110), (660, 31599), (990, 21066), (1188, 17555), (1485, 14044), (1980, 10533), (2970, 7022), (3511, 5940)]