20048640

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:274

約数の個数: 144

約数和(自身を含む): 67108608

約数和(自身を除く): 47059968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 128, 138, 160, 184, 192, 227, 230, 240, 256, 276, 320, 345, 368, 384, 454, 460, 480, 552, 640, 681, 690, 736, 768, 908, 920, 960, 1104, 1135, 1280, 1362, 1380, 1472, 1816, 1840, 1920, 2208, 2270, 2724, 2760, 2944, 3405, 3632, 3680, 3840, 4416, 4540, 5221, 5448, 5520, 5888, 6810, 7264, 7360, 8832, 9080, 10442, 10896, 11040, 13620, 14528, 14720, 15663, 17664, 18160, 20884, 21792, 22080, 26105, 27240, 29056, 29440, 31326, 36320, 41768, 43584, 44160, 52210, 54480, 58112, 62652, 72640, 78315, 83536, 87168, 88320, 104420, 108960, 125304, 145280, 156630, 167072, 174336, 208840, 217920, 250608, 290560, 313260, 334144, 417680, 435840, 501216, 626520, 668288, 835360, 871680, 1002432, 1253040, 1336576, 1670720, 2004864, 2506080, 3341440, 4009728, 5012160, 6682880, 10024320, 20048640]

約数ペア:

[(1, 20048640), (2, 10024320), (3, 6682880), (4, 5012160), (5, 4009728), (6, 3341440), (8, 2506080), (10, 2004864), (12, 1670720), (15, 1336576), (16, 1253040), (20, 1002432), (23, 871680), (24, 835360), (30, 668288), (32, 626520), (40, 501216), (46, 435840), (48, 417680), (60, 334144), (64, 313260), (69, 290560), (80, 250608), (92, 217920), (96, 208840), (115, 174336), (120, 167072), (128, 156630), (138, 145280), (160, 125304), (184, 108960), (192, 104420), (227, 88320), (230, 87168), (240, 83536), (256, 78315), (276, 72640), (320, 62652), (345, 58112), (368, 54480), (384, 52210), (454, 44160), (460, 43584), (480, 41768), (552, 36320), (640, 31326), (681, 29440), (690, 29056), (736, 27240), (768, 26105), (908, 22080), (920, 21792), (960, 20884), (1104, 18160), (1135, 17664), (1280, 15663), (1362, 14720), (1380, 14528), (1472, 13620), (1816, 11040), (1840, 10896), (1920, 10442), (2208, 9080), (2270, 8832), (2724, 7360), (2760, 7264), (2944, 6810), (3405, 5888), (3632, 5520), (3680, 5448), (3840, 5221), (4416, 4540)]