21608960

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:413

約数の個数: 80

約数和(自身を含む): 54210816

約数和(自身を除く): 32601856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 367, 368, 460, 512, 640, 734, 736, 920, 1280, 1468, 1472, 1835, 1840, 2560, 2936, 2944, 3670, 3680, 5872, 5888, 7340, 7360, 8441, 11744, 11776, 14680, 14720, 16882, 23488, 29360, 29440, 33764, 42205, 46976, 58720, 58880, 67528, 84410, 93952, 117440, 135056, 168820, 187904, 234880, 270112, 337640, 469760, 540224, 675280, 939520, 1080448, 1350560, 2160896, 2701120, 4321792, 5402240, 10804480, 21608960]

約数ペア:

[(1, 21608960), (2, 10804480), (4, 5402240), (5, 4321792), (8, 2701120), (10, 2160896), (16, 1350560), (20, 1080448), (23, 939520), (32, 675280), (40, 540224), (46, 469760), (64, 337640), (80, 270112), (92, 234880), (115, 187904), (128, 168820), (160, 135056), (184, 117440), (230, 93952), (256, 84410), (320, 67528), (367, 58880), (368, 58720), (460, 46976), (512, 42205), (640, 33764), (734, 29440), (736, 29360), (920, 23488), (1280, 16882), (1468, 14720), (1472, 14680), (1835, 11776), (1840, 11744), (2560, 8441), (2936, 7360), (2944, 7340), (3670, 5888), (3680, 5872)]