21995520

素因数分解:

$2^{13}\times 3^1\times 5^1\times {\mathrm{179}}^1$

素因数の和:213

約数の個数: 112

約数和(自身を含む): 70774560

約数和(自身を除く): 48779040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 179, 192, 240, 256, 320, 358, 384, 480, 512, 537, 640, 716, 768, 895, 960, 1024, 1074, 1280, 1432, 1536, 1790, 1920, 2048, 2148, 2560, 2685, 2864, 3072, 3580, 3840, 4096, 4296, 5120, 5370, 5728, 6144, 7160, 7680, 8192, 8592, 10240, 10740, 11456, 12288, 14320, 15360, 17184, 20480, 21480, 22912, 24576, 28640, 30720, 34368, 40960, 42960, 45824, 57280, 61440, 68736, 85920, 91648, 114560, 122880, 137472, 171840, 183296, 229120, 274944, 343680, 366592, 458240, 549888, 687360, 733184, 916480, 1099776, 1374720, 1466368, 1832960, 2199552, 2749440, 3665920, 4399104, 5498880, 7331840, 10997760, 21995520]

約数ペア:

[(1, 21995520), (2, 10997760), (3, 7331840), (4, 5498880), (5, 4399104), (6, 3665920), (8, 2749440), (10, 2199552), (12, 1832960), (15, 1466368), (16, 1374720), (20, 1099776), (24, 916480), (30, 733184), (32, 687360), (40, 549888), (48, 458240), (60, 366592), (64, 343680), (80, 274944), (96, 229120), (120, 183296), (128, 171840), (160, 137472), (179, 122880), (192, 114560), (240, 91648), (256, 85920), (320, 68736), (358, 61440), (384, 57280), (480, 45824), (512, 42960), (537, 40960), (640, 34368), (716, 30720), (768, 28640), (895, 24576), (960, 22912), (1024, 21480), (1074, 20480), (1280, 17184), (1432, 15360), (1536, 14320), (1790, 12288), (1920, 11456), (2048, 10740), (2148, 10240), (2560, 8592), (2685, 8192), (2864, 7680), (3072, 7160), (3580, 6144), (3840, 5728), (4096, 5370), (4296, 5120)]