256180760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{1759}}^1$

素因数の和:2112

約数の個数: 64

約数和(自身を含む): 631065600

約数和(自身を除く): 374884840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 331, 440, 662, 1324, 1655, 1759, 2648, 3310, 3518, 3641, 6620, 7036, 7282, 8795, 13240, 14072, 14564, 17590, 18205, 19349, 29128, 35180, 36410, 38698, 70360, 72820, 77396, 96745, 145640, 154792, 193490, 386980, 582229, 773960, 1164458, 2328916, 2911145, 4657832, 5822290, 6404519, 11644580, 12809038, 23289160, 25618076, 32022595, 51236152, 64045190, 128090380, 256180760]

約数ペア:

[(1, 256180760), (2, 128090380), (4, 64045190), (5, 51236152), (8, 32022595), (10, 25618076), (11, 23289160), (20, 12809038), (22, 11644580), (40, 6404519), (44, 5822290), (55, 4657832), (88, 2911145), (110, 2328916), (220, 1164458), (331, 773960), (440, 582229), (662, 386980), (1324, 193490), (1655, 154792), (1759, 145640), (2648, 96745), (3310, 77396), (3518, 72820), (3641, 70360), (6620, 38698), (7036, 36410), (7282, 35180), (8795, 29128), (13240, 19349), (14072, 18205), (14564, 17590)]