64027240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39041}}^1$

素因数の和:39093

約数の個数: 32

約数和(自身を含む): 147578760

約数和(自身を除く): 83551520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39041, 78082, 156164, 195205, 312328, 390410, 780820, 1561640, 1600681, 3201362, 6402724, 8003405, 12805448, 16006810, 32013620, 64027240]

約数ペア:

[(1, 64027240), (2, 32013620), (4, 16006810), (5, 12805448), (8, 8003405), (10, 6402724), (20, 3201362), (40, 1600681), (41, 1561640), (82, 780820), (164, 390410), (205, 312328), (328, 195205), (410, 156164), (820, 78082), (1640, 39041)]