28640940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{857}}^1$

素因数の和:1426

約数の個数: 48

約数和(自身を含む): 80432352

約数和(自身を除く): 51791412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 557, 857, 1114, 1671, 1714, 2228, 2571, 2785, 3342, 3428, 4285, 5142, 5570, 6684, 8355, 8570, 10284, 11140, 12855, 16710, 17140, 25710, 33420, 51420, 477349, 954698, 1432047, 1909396, 2386745, 2864094, 4773490, 5728188, 7160235, 9546980, 14320470, 28640940]

約数ペア:

[(1, 28640940), (2, 14320470), (3, 9546980), (4, 7160235), (5, 5728188), (6, 4773490), (10, 2864094), (12, 2386745), (15, 1909396), (20, 1432047), (30, 954698), (60, 477349), (557, 51420), (857, 33420), (1114, 25710), (1671, 17140), (1714, 16710), (2228, 12855), (2571, 11140), (2785, 10284), (3342, 8570), (3428, 8355), (4285, 6684), (5142, 5570)]