2581738880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1409}}^1$

素因数の和:1844

約数の個数: 128

約数和(自身を含む): 7075944000

約数和(自身を除く): 4494205120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 409, 448, 560, 640, 818, 896, 1120, 1409, 1636, 2045, 2240, 2818, 2863, 3272, 4090, 4480, 5636, 5726, 6544, 7045, 8180, 9863, 11272, 11452, 13088, 14090, 14315, 16360, 19726, 22544, 22904, 26176, 28180, 28630, 32720, 39452, 45088, 45808, 49315, 52352, 56360, 57260, 65440, 78904, 90176, 91616, 98630, 112720, 114520, 130880, 157808, 180352, 183232, 197260, 225440, 229040, 261760, 315616, 366464, 394520, 450880, 458080, 576281, 631232, 789040, 901760, 916160, 1152562, 1262464, 1578080, 1832320, 2305124, 2881405, 3156160, 4033967, 4610248, 5762810, 6312320, 8067934, 9220496, 11525620, 16135868, 18440992, 20169835, 23051240, 32271736, 36881984, 40339670, 46102480, 64543472, 73763968, 80679340, 92204960, 129086944, 161358680, 184409920, 258173888, 322717360, 368819840, 516347776, 645434720, 1290869440, 2581738880]

約数ペア:

[(1, 2581738880), (2, 1290869440), (4, 645434720), (5, 516347776), (7, 368819840), (8, 322717360), (10, 258173888), (14, 184409920), (16, 161358680), (20, 129086944), (28, 92204960), (32, 80679340), (35, 73763968), (40, 64543472), (56, 46102480), (64, 40339670), (70, 36881984), (80, 32271736), (112, 23051240), (128, 20169835), (140, 18440992), (160, 16135868), (224, 11525620), (280, 9220496), (320, 8067934), (409, 6312320), (448, 5762810), (560, 4610248), (640, 4033967), (818, 3156160), (896, 2881405), (1120, 2305124), (1409, 1832320), (1636, 1578080), (2045, 1262464), (2240, 1152562), (2818, 916160), (2863, 901760), (3272, 789040), (4090, 631232), (4480, 576281), (5636, 458080), (5726, 450880), (6544, 394520), (7045, 366464), (8180, 315616), (9863, 261760), (11272, 229040), (11452, 225440), (13088, 197260), (14090, 183232), (14315, 180352), (16360, 157808), (19726, 130880), (22544, 114520), (22904, 112720), (26176, 98630), (28180, 91616), (28630, 90176), (32720, 78904), (39452, 65440), (45088, 57260), (45808, 56360), (49315, 52352)]