81166140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40993}}^1$

素因数の和:41019

約数の個数: 72

約数和(自身を含む): 268592688

約数和(自身を除く): 187426548

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 40993, 81986, 122979, 163972, 204965, 245958, 368937, 409930, 450923, 491916, 614895, 737874, 819860, 901846, 1229790, 1352769, 1475748, 1803692, 1844685, 2254615, 2459580, 2705538, 3689370, 4058307, 4509230, 5411076, 6763845, 7378740, 8116614, 9018460, 13527690, 16233228, 20291535, 27055380, 40583070, 81166140]

約数ペア:

[(1, 81166140), (2, 40583070), (3, 27055380), (4, 20291535), (5, 16233228), (6, 13527690), (9, 9018460), (10, 8116614), (11, 7378740), (12, 6763845), (15, 5411076), (18, 4509230), (20, 4058307), (22, 3689370), (30, 2705538), (33, 2459580), (36, 2254615), (44, 1844685), (45, 1803692), (55, 1475748), (60, 1352769), (66, 1229790), (90, 901846), (99, 819860), (110, 737874), (132, 614895), (165, 491916), (180, 450923), (198, 409930), (220, 368937), (330, 245958), (396, 204965), (495, 163972), (660, 122979), (990, 81986), (1980, 40993)]