27978345

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 53706240

約数和(自身を除く): 25727895

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 73, 85, 135, 153, 167, 219, 255, 365, 459, 501, 657, 765, 835, 1095, 1241, 1503, 1971, 2295, 2505, 2839, 3285, 3723, 4509, 6205, 7515, 8517, 9855, 11169, 12191, 14195, 18615, 22545, 25551, 33507, 36573, 42585, 55845, 60955, 76653, 109719, 127755, 167535, 182865, 207247, 329157, 383265, 548595, 621741, 1036235, 1645785, 1865223, 3108705, 5595669, 9326115, 27978345]

約数ペア:

[(1, 27978345), (3, 9326115), (5, 5595669), (9, 3108705), (15, 1865223), (17, 1645785), (27, 1036235), (45, 621741), (51, 548595), (73, 383265), (85, 329157), (135, 207247), (153, 182865), (167, 167535), (219, 127755), (255, 109719), (365, 76653), (459, 60955), (501, 55845), (657, 42585), (765, 36573), (835, 33507), (1095, 25551), (1241, 22545), (1503, 18615), (1971, 14195), (2295, 12191), (2505, 11169), (2839, 9855), (3285, 8517), (3723, 7515), (4509, 6205)]