20372240

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{5197}}^1$

素因数の和:5224

約数の個数: 60

約数和(自身を含む): 55109196

約数和(自身を除く): 34736956

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 5197, 10394, 20788, 25985, 36379, 41576, 51970, 72758, 83152, 103940, 145516, 181895, 207880, 254653, 291032, 363790, 415760, 509306, 582064, 727580, 1018612, 1273265, 1455160, 2037224, 2546530, 2910320, 4074448, 5093060, 10186120, 20372240]

約数ペア:

[(1, 20372240), (2, 10186120), (4, 5093060), (5, 4074448), (7, 2910320), (8, 2546530), (10, 2037224), (14, 1455160), (16, 1273265), (20, 1018612), (28, 727580), (35, 582064), (40, 509306), (49, 415760), (56, 363790), (70, 291032), (80, 254653), (98, 207880), (112, 181895), (140, 145516), (196, 103940), (245, 83152), (280, 72758), (392, 51970), (490, 41576), (560, 36379), (784, 25985), (980, 20788), (1960, 10394), (3920, 5197)]