81634725

素因数分解:

$3^2\times 5^2\times {\mathrm{223}}^1\times {\mathrm{1627}}^1$

素因数の和:1866

約数の個数: 36

約数和(自身を含む): 146962816

約数和(自身を除く): 65328091

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 223, 225, 669, 1115, 1627, 2007, 3345, 4881, 5575, 8135, 10035, 14643, 16725, 24405, 40675, 50175, 73215, 122025, 362821, 366075, 1088463, 1814105, 3265389, 5442315, 9070525, 16326945, 27211575, 81634725]

約数ペア:

[(1, 81634725), (3, 27211575), (5, 16326945), (9, 9070525), (15, 5442315), (25, 3265389), (45, 1814105), (75, 1088463), (223, 366075), (225, 362821), (669, 122025), (1115, 73215), (1627, 50175), (2007, 40675), (3345, 24405), (4881, 16725), (5575, 14643), (8135, 10035)]