1284157040

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{62459}}^1$

素因数の和:62729

約数の個数: 40

約数和(自身を含む): 2997330480

約数和(自身を除く): 1713173440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 10280, 20560, 62459, 124918, 249836, 312295, 499672, 624590, 999344, 1249180, 2498360, 4996720, 16051963, 32103926, 64207852, 80259815, 128415704, 160519630, 256831408, 321039260, 642078520, 1284157040]

約数ペア:

[(1, 1284157040), (2, 642078520), (4, 321039260), (5, 256831408), (8, 160519630), (10, 128415704), (16, 80259815), (20, 64207852), (40, 32103926), (80, 16051963), (257, 4996720), (514, 2498360), (1028, 1249180), (1285, 999344), (2056, 624590), (2570, 499672), (4112, 312295), (5140, 249836), (10280, 124918), (20560, 62459)]