20144261680

素因数分解:

$2^4\times 5^1\times {\mathrm{461}}^1\times {\mathrm{546211}}^1$

素因数の和:546685

約数の個数: 40

約数和(自身を含む): 46937089584

約数和(自身を除く): 26792827904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 461, 922, 1844, 2305, 3688, 4610, 7376, 9220, 18440, 36880, 546211, 1092422, 2184844, 2731055, 4369688, 5462110, 8739376, 10924220, 21848440, 43696880, 251803271, 503606542, 1007213084, 1259016355, 2014426168, 2518032710, 4028852336, 5036065420, 10072130840, 20144261680]

約数ペア:

[(1, 20144261680), (2, 10072130840), (4, 5036065420), (5, 4028852336), (8, 2518032710), (10, 2014426168), (16, 1259016355), (20, 1007213084), (40, 503606542), (80, 251803271), (461, 43696880), (922, 21848440), (1844, 10924220), (2305, 8739376), (3688, 5462110), (4610, 4369688), (7376, 2731055), (9220, 2184844), (18440, 1092422), (36880, 546211)]