2151877120

素因数分解:

$2^9\times 5^1\times {\mathrm{673}}^1\times {\mathrm{1249}}^1$

素因数の和:1945

約数の個数: 80

約数和(自身を含む): 5171265000

約数和(自身を除く): 3019387880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 673, 1249, 1280, 1346, 2498, 2560, 2692, 3365, 4996, 5384, 6245, 6730, 9992, 10768, 12490, 13460, 19984, 21536, 24980, 26920, 39968, 43072, 49960, 53840, 79936, 86144, 99920, 107680, 159872, 172288, 199840, 215360, 319744, 344576, 399680, 430720, 639488, 799360, 840577, 861440, 1598720, 1681154, 1722880, 3197440, 3362308, 4202885, 6724616, 8405770, 13449232, 16811540, 26898464, 33623080, 53796928, 67246160, 107593856, 134492320, 215187712, 268984640, 430375424, 537969280, 1075938560, 2151877120]

約数ペア:

[(1, 2151877120), (2, 1075938560), (4, 537969280), (5, 430375424), (8, 268984640), (10, 215187712), (16, 134492320), (20, 107593856), (32, 67246160), (40, 53796928), (64, 33623080), (80, 26898464), (128, 16811540), (160, 13449232), (256, 8405770), (320, 6724616), (512, 4202885), (640, 3362308), (673, 3197440), (1249, 1722880), (1280, 1681154), (1346, 1598720), (2498, 861440), (2560, 840577), (2692, 799360), (3365, 639488), (4996, 430720), (5384, 399680), (6245, 344576), (6730, 319744), (9992, 215360), (10768, 199840), (12490, 172288), (13460, 159872), (19984, 107680), (21536, 99920), (24980, 86144), (26920, 79936), (39968, 53840), (43072, 49960)]