81204930

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3457}}^1$

素因数の和:3505

約数の個数: 80

約数和(自身を含む): 225945720

約数和(自身を除く): 144740790

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 81, 87, 90, 135, 145, 162, 174, 261, 270, 290, 405, 435, 522, 783, 810, 870, 1305, 1566, 2349, 2610, 3457, 3915, 4698, 6914, 7830, 10371, 11745, 17285, 20742, 23490, 31113, 34570, 51855, 62226, 93339, 100253, 103710, 155565, 186678, 200506, 280017, 300759, 311130, 466695, 501265, 560034, 601518, 902277, 933390, 1002530, 1400085, 1503795, 1804554, 2706831, 2800170, 3007590, 4511385, 5413662, 8120493, 9022770, 13534155, 16240986, 27068310, 40602465, 81204930]

約数ペア:

[(1, 81204930), (2, 40602465), (3, 27068310), (5, 16240986), (6, 13534155), (9, 9022770), (10, 8120493), (15, 5413662), (18, 4511385), (27, 3007590), (29, 2800170), (30, 2706831), (45, 1804554), (54, 1503795), (58, 1400085), (81, 1002530), (87, 933390), (90, 902277), (135, 601518), (145, 560034), (162, 501265), (174, 466695), (261, 311130), (270, 300759), (290, 280017), (405, 200506), (435, 186678), (522, 155565), (783, 103710), (810, 100253), (870, 93339), (1305, 62226), (1566, 51855), (2349, 34570), (2610, 31113), (3457, 23490), (3915, 20742), (4698, 17285), (6914, 11745), (7830, 10371)]