256887120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{152909}}^1$

素因数の和:152932

約数の個数: 80

約数和(自身を含む): 910120320

約数和(自身を除く): 653233200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 152909, 305818, 458727, 611636, 764545, 917454, 1070363, 1223272, 1529090, 1834908, 2140726, 2293635, 2446544, 3058180, 3211089, 3669816, 4281452, 4587270, 5351815, 6116360, 6422178, 7339632, 8562904, 9174540, 10703630, 12232720, 12844356, 16055445, 17125808, 18349080, 21407260, 25688712, 32110890, 36698160, 42814520, 51377424, 64221780, 85629040, 128443560, 256887120]

約数ペア:

[(1, 256887120), (2, 128443560), (3, 85629040), (4, 64221780), (5, 51377424), (6, 42814520), (7, 36698160), (8, 32110890), (10, 25688712), (12, 21407260), (14, 18349080), (15, 17125808), (16, 16055445), (20, 12844356), (21, 12232720), (24, 10703630), (28, 9174540), (30, 8562904), (35, 7339632), (40, 6422178), (42, 6116360), (48, 5351815), (56, 4587270), (60, 4281452), (70, 3669816), (80, 3211089), (84, 3058180), (105, 2446544), (112, 2293635), (120, 2140726), (140, 1834908), (168, 1529090), (210, 1223272), (240, 1070363), (280, 917454), (336, 764545), (420, 611636), (560, 458727), (840, 305818), (1680, 152909)]