81488960

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{5197}}^1$

素因数の和:5228

約数の個数: 84

約数和(自身を含む): 225769932

約数和(自身を除く): 144280972

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 5197, 7840, 10394, 15680, 20788, 25985, 36379, 41576, 51970, 72758, 83152, 103940, 145516, 166304, 181895, 207880, 254653, 291032, 332608, 363790, 415760, 509306, 582064, 727580, 831520, 1018612, 1164128, 1273265, 1455160, 1663040, 2037224, 2328256, 2546530, 2910320, 4074448, 5093060, 5820640, 8148896, 10186120, 11641280, 16297792, 20372240, 40744480, 81488960]

約数ペア:

[(1, 81488960), (2, 40744480), (4, 20372240), (5, 16297792), (7, 11641280), (8, 10186120), (10, 8148896), (14, 5820640), (16, 5093060), (20, 4074448), (28, 2910320), (32, 2546530), (35, 2328256), (40, 2037224), (49, 1663040), (56, 1455160), (64, 1273265), (70, 1164128), (80, 1018612), (98, 831520), (112, 727580), (140, 582064), (160, 509306), (196, 415760), (224, 363790), (245, 332608), (280, 291032), (320, 254653), (392, 207880), (448, 181895), (490, 166304), (560, 145516), (784, 103940), (980, 83152), (1120, 72758), (1568, 51970), (1960, 41576), (2240, 36379), (3136, 25985), (3920, 20788), (5197, 15680), (7840, 10394)]