18218600

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1283}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 42988320

約数和(自身を除く): 24769720

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1283, 1420, 1775, 2566, 2840, 3550, 5132, 6415, 7100, 10264, 12830, 14200, 25660, 32075, 51320, 64150, 91093, 128300, 182186, 256600, 364372, 455465, 728744, 910930, 1821860, 2277325, 3643720, 4554650, 9109300, 18218600]

約数ペア:

[(1, 18218600), (2, 9109300), (4, 4554650), (5, 3643720), (8, 2277325), (10, 1821860), (20, 910930), (25, 728744), (40, 455465), (50, 364372), (71, 256600), (100, 182186), (142, 128300), (200, 91093), (284, 64150), (355, 51320), (568, 32075), (710, 25660), (1283, 14200), (1420, 12830), (1775, 10264), (2566, 7100), (2840, 6415), (3550, 5132)]