20430840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1913}}^1$

素因数の和:2016

約数の個数: 64

約数和(自身を含む): 62013600

約数和(自身を除く): 41582760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 89, 120, 178, 267, 356, 445, 534, 712, 890, 1068, 1335, 1780, 1913, 2136, 2670, 3560, 3826, 5340, 5739, 7652, 9565, 10680, 11478, 15304, 19130, 22956, 28695, 38260, 45912, 57390, 76520, 114780, 170257, 229560, 340514, 510771, 681028, 851285, 1021542, 1362056, 1702570, 2043084, 2553855, 3405140, 4086168, 5107710, 6810280, 10215420, 20430840]

約数ペア:

[(1, 20430840), (2, 10215420), (3, 6810280), (4, 5107710), (5, 4086168), (6, 3405140), (8, 2553855), (10, 2043084), (12, 1702570), (15, 1362056), (20, 1021542), (24, 851285), (30, 681028), (40, 510771), (60, 340514), (89, 229560), (120, 170257), (178, 114780), (267, 76520), (356, 57390), (445, 45912), (534, 38260), (712, 28695), (890, 22956), (1068, 19130), (1335, 15304), (1780, 11478), (1913, 10680), (2136, 9565), (2670, 7652), (3560, 5739), (3826, 5340)]