25153280

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 61786032

約数和(自身を除く): 36632752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 457, 640, 688, 860, 914, 1280, 1376, 1720, 1828, 2285, 2752, 3440, 3656, 4570, 5504, 6880, 7312, 9140, 11008, 13760, 14624, 18280, 19651, 27520, 29248, 36560, 39302, 55040, 58496, 73120, 78604, 98255, 116992, 146240, 157208, 196510, 292480, 314416, 393020, 584960, 628832, 786040, 1257664, 1572080, 2515328, 3144160, 5030656, 6288320, 12576640, 25153280]

約数ペア:

[(1, 25153280), (2, 12576640), (4, 6288320), (5, 5030656), (8, 3144160), (10, 2515328), (16, 1572080), (20, 1257664), (32, 786040), (40, 628832), (43, 584960), (64, 393020), (80, 314416), (86, 292480), (128, 196510), (160, 157208), (172, 146240), (215, 116992), (256, 98255), (320, 78604), (344, 73120), (430, 58496), (457, 55040), (640, 39302), (688, 36560), (860, 29248), (914, 27520), (1280, 19651), (1376, 18280), (1720, 14624), (1828, 13760), (2285, 11008), (2752, 9140), (3440, 7312), (3656, 6880), (4570, 5504)]