81819720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{25253}}^1$

素因数の和:25276

約数の個数: 80

約数和(自身を含む): 275016060

約数和(自身を除く): 193196340

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 25253, 50506, 75759, 101012, 126265, 151518, 202024, 227277, 252530, 303036, 378795, 454554, 505060, 606072, 681831, 757590, 909108, 1010120, 1136385, 1363662, 1515180, 1818216, 2045493, 2272770, 2727324, 3030360, 3409155, 4090986, 4545540, 5454648, 6818310, 8181972, 9091080, 10227465, 13636620, 16363944, 20454930, 27273240, 40909860, 81819720]

約数ペア:

[(1, 81819720), (2, 40909860), (3, 27273240), (4, 20454930), (5, 16363944), (6, 13636620), (8, 10227465), (9, 9091080), (10, 8181972), (12, 6818310), (15, 5454648), (18, 4545540), (20, 4090986), (24, 3409155), (27, 3030360), (30, 2727324), (36, 2272770), (40, 2045493), (45, 1818216), (54, 1515180), (60, 1363662), (72, 1136385), (81, 1010120), (90, 909108), (108, 757590), (120, 681831), (135, 606072), (162, 505060), (180, 454554), (216, 378795), (270, 303036), (324, 252530), (360, 227277), (405, 202024), (540, 151518), (648, 126265), (810, 101012), (1080, 75759), (1620, 50506), (3240, 25253)]