20576368

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:445

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 20670992

約数列:

[1, 2, 4, 8, 16, 59, 71, 118, 142, 236, 284, 307, 472, 568, 614, 944, 1136, 1228, 2456, 4189, 4912, 8378, 16756, 18113, 21797, 33512, 36226, 43594, 67024, 72452, 87188, 144904, 174376, 289808, 348752, 1286023, 2572046, 5144092, 10288184, 20576368]

約数ペア:

[(1, 20576368), (2, 10288184), (4, 5144092), (8, 2572046), (16, 1286023), (59, 348752), (71, 289808), (118, 174376), (142, 144904), (236, 87188), (284, 72452), (307, 67024), (472, 43594), (568, 36226), (614, 33512), (944, 21797), (1136, 18113), (1228, 16756), (2456, 8378), (4189, 4912)]