247654845

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{977}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 443057472

約数和(自身を除く): 195402627

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 131, 215, 387, 393, 645, 655, 977, 1179, 1935, 1965, 2931, 4885, 5633, 5895, 8793, 14655, 16899, 28165, 42011, 43965, 50697, 84495, 126033, 127987, 210055, 253485, 378099, 383961, 630165, 639935, 1151883, 1890495, 1919805, 5503441, 5759415, 16510323, 27517205, 49530969, 82551615, 247654845]

約数ペア:

[(1, 247654845), (3, 82551615), (5, 49530969), (9, 27517205), (15, 16510323), (43, 5759415), (45, 5503441), (129, 1919805), (131, 1890495), (215, 1151883), (387, 639935), (393, 630165), (645, 383961), (655, 378099), (977, 253485), (1179, 210055), (1935, 127987), (1965, 126033), (2931, 84495), (4885, 50697), (5633, 43965), (5895, 42011), (8793, 28165), (14655, 16899)]