28290560

素因数分解:

$2^9\times 5^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:323

約数の個数: 80

約数和(自身を含む): 69678576

約数和(自身を除く): 41388016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 257, 320, 344, 430, 512, 514, 640, 688, 860, 1028, 1280, 1285, 1376, 1720, 2056, 2560, 2570, 2752, 3440, 4112, 5140, 5504, 6880, 8224, 10280, 11008, 11051, 13760, 16448, 20560, 22016, 22102, 27520, 32896, 41120, 44204, 55040, 55255, 65792, 82240, 88408, 110080, 110510, 131584, 164480, 176816, 221020, 328960, 353632, 442040, 657920, 707264, 884080, 1414528, 1768160, 2829056, 3536320, 5658112, 7072640, 14145280, 28290560]

約数ペア:

[(1, 28290560), (2, 14145280), (4, 7072640), (5, 5658112), (8, 3536320), (10, 2829056), (16, 1768160), (20, 1414528), (32, 884080), (40, 707264), (43, 657920), (64, 442040), (80, 353632), (86, 328960), (128, 221020), (160, 176816), (172, 164480), (215, 131584), (256, 110510), (257, 110080), (320, 88408), (344, 82240), (430, 65792), (512, 55255), (514, 55040), (640, 44204), (688, 41120), (860, 32896), (1028, 27520), (1280, 22102), (1285, 22016), (1376, 20560), (1720, 16448), (2056, 13760), (2560, 11051), (2570, 11008), (2752, 10280), (3440, 8224), (4112, 6880), (5140, 5504)]