28264960

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 80

約数和(自身を含む): 69261192

約数和(自身を除く): 40996232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 181, 244, 256, 305, 320, 362, 488, 512, 610, 640, 724, 905, 976, 1220, 1280, 1448, 1810, 1952, 2440, 2560, 2896, 3620, 3904, 4880, 5792, 7240, 7808, 9760, 11041, 11584, 14480, 15616, 19520, 22082, 23168, 28960, 31232, 39040, 44164, 46336, 55205, 57920, 78080, 88328, 92672, 110410, 115840, 156160, 176656, 220820, 231680, 353312, 441640, 463360, 706624, 883280, 1413248, 1766560, 2826496, 3533120, 5652992, 7066240, 14132480, 28264960]

約数ペア:

[(1, 28264960), (2, 14132480), (4, 7066240), (5, 5652992), (8, 3533120), (10, 2826496), (16, 1766560), (20, 1413248), (32, 883280), (40, 706624), (61, 463360), (64, 441640), (80, 353312), (122, 231680), (128, 220820), (160, 176656), (181, 156160), (244, 115840), (256, 110410), (305, 92672), (320, 88328), (362, 78080), (488, 57920), (512, 55205), (610, 46336), (640, 44164), (724, 39040), (905, 31232), (976, 28960), (1220, 23168), (1280, 22082), (1448, 19520), (1810, 15616), (1952, 14480), (2440, 11584), (2560, 11041), (2896, 9760), (3620, 7808), (3904, 7240), (4880, 5792)]