25287680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1$

素因数の和:485

約数の個数: 88

約数和(自身を含む): 66322800

約数和(自身を除く): 41035120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 449, 512, 640, 704, 880, 898, 1024, 1280, 1408, 1760, 1796, 2245, 2560, 2816, 3520, 3592, 4490, 4939, 5120, 5632, 7040, 7184, 8980, 9878, 11264, 14080, 14368, 17960, 19756, 24695, 28160, 28736, 35920, 39512, 49390, 56320, 57472, 71840, 79024, 98780, 114944, 143680, 158048, 197560, 229888, 287360, 316096, 395120, 459776, 574720, 632192, 790240, 1149440, 1264384, 1580480, 2298880, 2528768, 3160960, 5057536, 6321920, 12643840, 25287680]

約数ペア:

[(1, 25287680), (2, 12643840), (4, 6321920), (5, 5057536), (8, 3160960), (10, 2528768), (11, 2298880), (16, 1580480), (20, 1264384), (22, 1149440), (32, 790240), (40, 632192), (44, 574720), (55, 459776), (64, 395120), (80, 316096), (88, 287360), (110, 229888), (128, 197560), (160, 158048), (176, 143680), (220, 114944), (256, 98780), (320, 79024), (352, 71840), (440, 57472), (449, 56320), (512, 49390), (640, 39512), (704, 35920), (880, 28736), (898, 28160), (1024, 24695), (1280, 19756), (1408, 17960), (1760, 14368), (1796, 14080), (2245, 11264), (2560, 9878), (2816, 8980), (3520, 7184), (3592, 7040), (4490, 5632), (4939, 5120)]