21688320

素因数分解:

$2^{12}\times 3^1\times 5^1\times {\mathrm{353}}^1$

素因数の和:385

約数の個数: 104

約数和(自身を含む): 69590736

約数和(自身を除く): 47902416

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, 192, 240, 256, 320, 353, 384, 480, 512, 640, 706, 768, 960, 1024, 1059, 1280, 1412, 1536, 1765, 1920, 2048, 2118, 2560, 2824, 3072, 3530, 3840, 4096, 4236, 5120, 5295, 5648, 6144, 7060, 7680, 8472, 10240, 10590, 11296, 12288, 14120, 15360, 16944, 20480, 21180, 22592, 28240, 30720, 33888, 42360, 45184, 56480, 61440, 67776, 84720, 90368, 112960, 135552, 169440, 180736, 225920, 271104, 338880, 361472, 451840, 542208, 677760, 722944, 903680, 1084416, 1355520, 1445888, 1807360, 2168832, 2711040, 3614720, 4337664, 5422080, 7229440, 10844160, 21688320]

約数ペア:

[(1, 21688320), (2, 10844160), (3, 7229440), (4, 5422080), (5, 4337664), (6, 3614720), (8, 2711040), (10, 2168832), (12, 1807360), (15, 1445888), (16, 1355520), (20, 1084416), (24, 903680), (30, 722944), (32, 677760), (40, 542208), (48, 451840), (60, 361472), (64, 338880), (80, 271104), (96, 225920), (120, 180736), (128, 169440), (160, 135552), (192, 112960), (240, 90368), (256, 84720), (320, 67776), (353, 61440), (384, 56480), (480, 45184), (512, 42360), (640, 33888), (706, 30720), (768, 28240), (960, 22592), (1024, 21180), (1059, 20480), (1280, 16944), (1412, 15360), (1536, 14120), (1765, 12288), (1920, 11296), (2048, 10590), (2118, 10240), (2560, 8472), (2824, 7680), (3072, 7060), (3530, 6144), (3840, 5648), (4096, 5295), (4236, 5120)]