39968440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24371}}^1$

素因数の和:24423

約数の個数: 32

約数和(自身を含む): 92126160

約数和(自身を除く): 52157720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 24371, 48742, 97484, 121855, 194968, 243710, 487420, 974840, 999211, 1998422, 3996844, 4996055, 7993688, 9992110, 19984220, 39968440]

約数ペア:

[(1, 39968440), (2, 19984220), (4, 9992110), (5, 7993688), (8, 4996055), (10, 3996844), (20, 1998422), (40, 999211), (41, 974840), (82, 487420), (164, 243710), (205, 194968), (328, 121855), (410, 97484), (820, 48742), (1640, 24371)]