81099225

素因数分解:

$3^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1381}}^1$

素因数の和:1432

約数の個数: 60

約数和(自身を含む): 155516460

約数和(自身を除く): 74417235

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 81, 87, 135, 145, 225, 261, 405, 435, 675, 725, 783, 1305, 1381, 2025, 2175, 2349, 3915, 4143, 6525, 6905, 11745, 12429, 19575, 20715, 34525, 37287, 40049, 58725, 62145, 103575, 111861, 120147, 186435, 200245, 310725, 360441, 559305, 600735, 932175, 1001225, 1081323, 1802205, 2796525, 3003675, 3243969, 5406615, 9011025, 16219845, 27033075, 81099225]

約数ペア:

[(1, 81099225), (3, 27033075), (5, 16219845), (9, 9011025), (15, 5406615), (25, 3243969), (27, 3003675), (29, 2796525), (45, 1802205), (75, 1081323), (81, 1001225), (87, 932175), (135, 600735), (145, 559305), (225, 360441), (261, 310725), (405, 200245), (435, 186435), (675, 120147), (725, 111861), (783, 103575), (1305, 62145), (1381, 58725), (2025, 40049), (2175, 37287), (2349, 34525), (3915, 20715), (4143, 19575), (6525, 12429), (6905, 11745)]