20531670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 51710400

約数和(自身を除く): 31178730

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 53, 74, 106, 111, 159, 185, 222, 265, 318, 349, 370, 530, 555, 698, 795, 1047, 1110, 1590, 1745, 1961, 2094, 3490, 3922, 5235, 5883, 9805, 10470, 11766, 12913, 18497, 19610, 25826, 29415, 36994, 38739, 55491, 58830, 64565, 77478, 92485, 110982, 129130, 184970, 193695, 277455, 387390, 554910, 684389, 1368778, 2053167, 3421945, 4106334, 6843890, 10265835, 20531670]

約数ペア:

[(1, 20531670), (2, 10265835), (3, 6843890), (5, 4106334), (6, 3421945), (10, 2053167), (15, 1368778), (30, 684389), (37, 554910), (53, 387390), (74, 277455), (106, 193695), (111, 184970), (159, 129130), (185, 110982), (222, 92485), (265, 77478), (318, 64565), (349, 58830), (370, 55491), (530, 38739), (555, 36994), (698, 29415), (795, 25826), (1047, 19610), (1110, 18497), (1590, 12913), (1745, 11766), (1961, 10470), (2094, 9805), (3490, 5883), (3922, 5235)]