20336640

素因数分解:

$2^{12}\times 3^1\times 5^1\times {\mathrm{331}}^1$

素因数の和:363

約数の個数: 104

約数和(自身を含む): 65265888

約数和(自身を除く): 44929248

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, 331, 384, 480, 512, 640, 662, 768, 960, 993, 1024, 1280, 1324, 1536, 1655, 1920, 1986, 2048, 2560, 2648, 3072, 3310, 3840, 3972, 4096, 4965, 5120, 5296, 6144, 6620, 7680, 7944, 9930, 10240, 10592, 12288, 13240, 15360, 15888, 19860, 20480, 21184, 26480, 30720, 31776, 39720, 42368, 52960, 61440, 63552, 79440, 84736, 105920, 127104, 158880, 169472, 211840, 254208, 317760, 338944, 423680, 508416, 635520, 677888, 847360, 1016832, 1271040, 1355776, 1694720, 2033664, 2542080, 3389440, 4067328, 5084160, 6778880, 10168320, 20336640]

約数ペア:

[(1, 20336640), (2, 10168320), (3, 6778880), (4, 5084160), (5, 4067328), (6, 3389440), (8, 2542080), (10, 2033664), (12, 1694720), (15, 1355776), (16, 1271040), (20, 1016832), (24, 847360), (30, 677888), (32, 635520), (40, 508416), (48, 423680), (60, 338944), (64, 317760), (80, 254208), (96, 211840), (120, 169472), (128, 158880), (160, 127104), (192, 105920), (240, 84736), (256, 79440), (320, 63552), (331, 61440), (384, 52960), (480, 42368), (512, 39720), (640, 31776), (662, 30720), (768, 26480), (960, 21184), (993, 20480), (1024, 19860), (1280, 15888), (1324, 15360), (1536, 13240), (1655, 12288), (1920, 10592), (1986, 10240), (2048, 9930), (2560, 7944), (2648, 7680), (3072, 6620), (3310, 6144), (3840, 5296), (3972, 5120), (4096, 4965)]