408068985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{179}}^1\times {\mathrm{421}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 694578240

約数和(自身を除く): 286509255

約数列:

[1, 3, 5, 15, 19, 57, 95, 179, 285, 361, 421, 537, 895, 1083, 1263, 1805, 2105, 2685, 3401, 5415, 6315, 7999, 10203, 17005, 23997, 39995, 51015, 64619, 75359, 119985, 151981, 193857, 226077, 323095, 376795, 455943, 759905, 969285, 1130385, 1431821, 2279715, 4295463, 7159105, 21477315, 27204599, 81613797, 136022995, 408068985]

約数ペア:

[(1, 408068985), (3, 136022995), (5, 81613797), (15, 27204599), (19, 21477315), (57, 7159105), (95, 4295463), (179, 2279715), (285, 1431821), (361, 1130385), (421, 969285), (537, 759905), (895, 455943), (1083, 376795), (1263, 323095), (1805, 226077), (2105, 193857), (2685, 151981), (3401, 119985), (5415, 75359), (6315, 64619), (7999, 51015), (10203, 39995), (17005, 23997)]