20575560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{619}}^1$

素因数の和:910

約数の個数: 64

約数和(自身を含む): 62049600

約数和(自身を除く): 41474040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 277, 554, 619, 831, 1108, 1238, 1385, 1662, 1857, 2216, 2476, 2770, 3095, 3324, 3714, 4155, 4952, 5540, 6190, 6648, 7428, 8310, 9285, 11080, 12380, 14856, 16620, 18570, 24760, 33240, 37140, 74280, 171463, 342926, 514389, 685852, 857315, 1028778, 1371704, 1714630, 2057556, 2571945, 3429260, 4115112, 5143890, 6858520, 10287780, 20575560]

約数ペア:

[(1, 20575560), (2, 10287780), (3, 6858520), (4, 5143890), (5, 4115112), (6, 3429260), (8, 2571945), (10, 2057556), (12, 1714630), (15, 1371704), (20, 1028778), (24, 857315), (30, 685852), (40, 514389), (60, 342926), (120, 171463), (277, 74280), (554, 37140), (619, 33240), (831, 24760), (1108, 18570), (1238, 16620), (1385, 14856), (1662, 12380), (1857, 11080), (2216, 9285), (2476, 8310), (2770, 7428), (3095, 6648), (3324, 6190), (3714, 5540), (4155, 4952)]