205122101860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1289}}^1\times {\mathrm{612049}}^1$

素因数の和:613360

約数の個数: 48

約数和(自身を含む): 464252166000

約数和(自身を除く): 259130064140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1289, 2578, 5156, 6445, 12890, 16757, 25780, 33514, 67028, 83785, 167570, 335140, 612049, 1224098, 2448196, 3060245, 6120490, 7956637, 12240980, 15913274, 31826548, 39783185, 79566370, 159132740, 788931161, 1577862322, 3155724644, 3944655805, 7889311610, 10256105093, 15778623220, 20512210186, 41024420372, 51280525465, 102561050930, 205122101860]

約数ペア:

[(1, 205122101860), (2, 102561050930), (4, 51280525465), (5, 41024420372), (10, 20512210186), (13, 15778623220), (20, 10256105093), (26, 7889311610), (52, 3944655805), (65, 3155724644), (130, 1577862322), (260, 788931161), (1289, 159132740), (2578, 79566370), (5156, 39783185), (6445, 31826548), (12890, 15913274), (16757, 12240980), (25780, 7956637), (33514, 6120490), (67028, 3060245), (83785, 2448196), (167570, 1224098), (335140, 612049)]