256071780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5099}}^1$

素因数の和:5151

約数の個数: 120

約数和(自身を含む): 829382400

約数和(自身を除く): 573310620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 405, 465, 540, 558, 620, 810, 837, 930, 1116, 1395, 1620, 1674, 1860, 2511, 2790, 3348, 4185, 5022, 5099, 5580, 8370, 10044, 10198, 12555, 15297, 16740, 20396, 25110, 25495, 30594, 45891, 50220, 50990, 61188, 76485, 91782, 101980, 137673, 152970, 158069, 183564, 229455, 275346, 305940, 316138, 413019, 458910, 474207, 550692, 632276, 688365, 790345, 826038, 917820, 948414, 1376730, 1422621, 1580690, 1652076, 1896828, 2065095, 2371035, 2753460, 2845242, 3161380, 4130190, 4267863, 4742070, 5690484, 7113105, 8260380, 8535726, 9484140, 12803589, 14226210, 17071452, 21339315, 25607178, 28452420, 42678630, 51214356, 64017945, 85357260, 128035890, 256071780]

約数ペア:

[(1, 256071780), (2, 128035890), (3, 85357260), (4, 64017945), (5, 51214356), (6, 42678630), (9, 28452420), (10, 25607178), (12, 21339315), (15, 17071452), (18, 14226210), (20, 12803589), (27, 9484140), (30, 8535726), (31, 8260380), (36, 7113105), (45, 5690484), (54, 4742070), (60, 4267863), (62, 4130190), (81, 3161380), (90, 2845242), (93, 2753460), (108, 2371035), (124, 2065095), (135, 1896828), (155, 1652076), (162, 1580690), (180, 1422621), (186, 1376730), (270, 948414), (279, 917820), (310, 826038), (324, 790345), (372, 688365), (405, 632276), (465, 550692), (540, 474207), (558, 458910), (620, 413019), (810, 316138), (837, 305940), (930, 275346), (1116, 229455), (1395, 183564), (1620, 158069), (1674, 152970), (1860, 137673), (2511, 101980), (2790, 91782), (3348, 76485), (4185, 61188), (5022, 50990), (5099, 50220), (5580, 45891), (8370, 30594), (10044, 25495), (10198, 25110), (12555, 20396), (15297, 16740)]