11487800

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 27118800

約数和(自身を除く): 15631000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 809, 1420, 1618, 1775, 2840, 3236, 3550, 4045, 6472, 7100, 8090, 14200, 16180, 20225, 32360, 40450, 57439, 80900, 114878, 161800, 229756, 287195, 459512, 574390, 1148780, 1435975, 2297560, 2871950, 5743900, 11487800]

約数ペア:

[(1, 11487800), (2, 5743900), (4, 2871950), (5, 2297560), (8, 1435975), (10, 1148780), (20, 574390), (25, 459512), (40, 287195), (50, 229756), (71, 161800), (100, 114878), (142, 80900), (200, 57439), (284, 40450), (355, 32360), (568, 20225), (710, 16180), (809, 14200), (1420, 8090), (1618, 7100), (1775, 6472), (2840, 4045), (3236, 3550)]