28746405

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{709}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 53829360

約数和(自身を除く): 25082955

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 53, 85, 153, 159, 255, 265, 477, 709, 765, 795, 901, 2127, 2385, 2703, 3545, 4505, 6381, 8109, 10635, 12053, 13515, 31905, 36159, 37577, 40545, 60265, 108477, 112731, 180795, 187885, 338193, 542385, 563655, 638809, 1690965, 1916427, 3194045, 5749281, 9582135, 28746405]

約数ペア:

[(1, 28746405), (3, 9582135), (5, 5749281), (9, 3194045), (15, 1916427), (17, 1690965), (45, 638809), (51, 563655), (53, 542385), (85, 338193), (153, 187885), (159, 180795), (255, 112731), (265, 108477), (477, 60265), (709, 40545), (765, 37577), (795, 36159), (901, 31905), (2127, 13515), (2385, 12053), (2703, 10635), (3545, 8109), (4505, 6381)]