21252240

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9839}}^1$

素因数の和:9861

約数の個数: 80

約数和(自身を含む): 73209600

約数和(自身を除く): 51957360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9839, 19678, 29517, 39356, 49195, 59034, 78712, 88551, 98390, 118068, 147585, 157424, 177102, 196780, 236136, 265653, 295170, 354204, 393560, 442755, 472272, 531306, 590340, 708408, 787120, 885510, 1062612, 1180680, 1328265, 1416816, 1771020, 2125224, 2361360, 2656530, 3542040, 4250448, 5313060, 7084080, 10626120, 21252240]

約数ペア:

[(1, 21252240), (2, 10626120), (3, 7084080), (4, 5313060), (5, 4250448), (6, 3542040), (8, 2656530), (9, 2361360), (10, 2125224), (12, 1771020), (15, 1416816), (16, 1328265), (18, 1180680), (20, 1062612), (24, 885510), (27, 787120), (30, 708408), (36, 590340), (40, 531306), (45, 472272), (48, 442755), (54, 393560), (60, 354204), (72, 295170), (80, 265653), (90, 236136), (108, 196780), (120, 177102), (135, 157424), (144, 147585), (180, 118068), (216, 98390), (240, 88551), (270, 78712), (360, 59034), (432, 49195), (540, 39356), (720, 29517), (1080, 19678), (2160, 9839)]