205656560

素因数分解:

$2^4\times 5^1\times {\mathrm{619}}^1\times {\mathrm{4153}}^1$

素因数の和:4785

約数の個数: 40

約数和(自身を含む): 479039280

約数和(自身を除く): 273382720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 619, 1238, 2476, 3095, 4153, 4952, 6190, 8306, 9904, 12380, 16612, 20765, 24760, 33224, 41530, 49520, 66448, 83060, 166120, 332240, 2570707, 5141414, 10282828, 12853535, 20565656, 25707070, 41131312, 51414140, 102828280, 205656560]

約数ペア:

[(1, 205656560), (2, 102828280), (4, 51414140), (5, 41131312), (8, 25707070), (10, 20565656), (16, 12853535), (20, 10282828), (40, 5141414), (80, 2570707), (619, 332240), (1238, 166120), (2476, 83060), (3095, 66448), (4153, 49520), (4952, 41530), (6190, 33224), (8306, 24760), (9904, 20765), (12380, 16612)]