2007489920

素因数分解:

$2^7\times 5^1\times {\mathrm{157}}^1\times {\mathrm{19979}}^1$

素因数の和:20155

約数の個数: 64

約数和(自身を含む): 4829965200

約数和(自身を除く): 2822475280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 314, 320, 628, 640, 785, 1256, 1570, 2512, 3140, 5024, 6280, 10048, 12560, 19979, 20096, 25120, 39958, 50240, 79916, 99895, 100480, 159832, 199790, 319664, 399580, 639328, 799160, 1278656, 1598320, 2557312, 3136703, 3196640, 6273406, 6393280, 12546812, 12786560, 15683515, 25093624, 31367030, 50187248, 62734060, 100374496, 125468120, 200748992, 250936240, 401497984, 501872480, 1003744960, 2007489920]

約数ペア:

[(1, 2007489920), (2, 1003744960), (4, 501872480), (5, 401497984), (8, 250936240), (10, 200748992), (16, 125468120), (20, 100374496), (32, 62734060), (40, 50187248), (64, 31367030), (80, 25093624), (128, 15683515), (157, 12786560), (160, 12546812), (314, 6393280), (320, 6273406), (628, 3196640), (640, 3136703), (785, 2557312), (1256, 1598320), (1570, 1278656), (2512, 799160), (3140, 639328), (5024, 399580), (6280, 319664), (10048, 199790), (12560, 159832), (19979, 100480), (20096, 99895), (25120, 79916), (39958, 50240)]