7781680

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{461}}^1$

素因数の和:685

約数の個数: 40

約数和(自身を含む): 18217584

約数和(自身を除く): 10435904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 461, 844, 922, 1055, 1688, 1844, 2110, 2305, 3376, 3688, 4220, 4610, 7376, 8440, 9220, 16880, 18440, 36880, 97271, 194542, 389084, 486355, 778168, 972710, 1556336, 1945420, 3890840, 7781680]

約数ペア:

[(1, 7781680), (2, 3890840), (4, 1945420), (5, 1556336), (8, 972710), (10, 778168), (16, 486355), (20, 389084), (40, 194542), (80, 97271), (211, 36880), (422, 18440), (461, 16880), (844, 9220), (922, 8440), (1055, 7376), (1688, 4610), (1844, 4220), (2110, 3688), (2305, 3376)]