640028672

素因数分解:

$2^{12}\times {\mathrm{156257}}^1$

素因数の和:156281

約数の個数: 26

約数和(自身を含む): 1279909278

約数和(自身を除く): 639880606

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 156257, 312514, 625028, 1250056, 2500112, 5000224, 10000448, 20000896, 40001792, 80003584, 160007168, 320014336, 640028672]

約数ペア:

[(1, 640028672), (2, 320014336), (4, 160007168), (8, 80003584), (16, 40001792), (32, 20000896), (64, 10000448), (128, 5000224), (256, 2500112), (512, 1250056), (1024, 625028), (2048, 312514), (4096, 156257)]