4000858240

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{102481}}^1$

素因数の和:102561

約数の個数: 64

約数和(自身を含む): 9721442520

約数和(自身を除く): 5720584280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 976, 1220, 1952, 2440, 3904, 4880, 7808, 9760, 19520, 39040, 102481, 204962, 409924, 512405, 819848, 1024810, 1639696, 2049620, 3279392, 4099240, 6251341, 6558784, 8198480, 12502682, 13117568, 16396960, 25005364, 31256705, 32793920, 50010728, 62513410, 65587840, 100021456, 125026820, 200042912, 250053640, 400085824, 500107280, 800171648, 1000214560, 2000429120, 4000858240]

約数ペア:

[(1, 4000858240), (2, 2000429120), (4, 1000214560), (5, 800171648), (8, 500107280), (10, 400085824), (16, 250053640), (20, 200042912), (32, 125026820), (40, 100021456), (61, 65587840), (64, 62513410), (80, 50010728), (122, 32793920), (128, 31256705), (160, 25005364), (244, 16396960), (305, 13117568), (320, 12502682), (488, 8198480), (610, 6558784), (640, 6251341), (976, 4099240), (1220, 3279392), (1952, 2049620), (2440, 1639696), (3904, 1024810), (4880, 819848), (7808, 512405), (9760, 409924), (19520, 204962), (39040, 102481)]