20044640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1627}}^1$

素因数の和:1660

約数の個数: 96

約数和(自身を含む): 59076864

約数和(自身を除く): 39032224

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1627, 1760, 2464, 3080, 3254, 6160, 6508, 8135, 11389, 12320, 13016, 16270, 17897, 22778, 26032, 32540, 35794, 45556, 52064, 56945, 65080, 71588, 89485, 91112, 113890, 125279, 130160, 143176, 178970, 182224, 227780, 250558, 260320, 286352, 357940, 364448, 455560, 501116, 572704, 626395, 715880, 911120, 1002232, 1252790, 1431760, 1822240, 2004464, 2505580, 2863520, 4008928, 5011160, 10022320, 20044640]

約数ペア:

[(1, 20044640), (2, 10022320), (4, 5011160), (5, 4008928), (7, 2863520), (8, 2505580), (10, 2004464), (11, 1822240), (14, 1431760), (16, 1252790), (20, 1002232), (22, 911120), (28, 715880), (32, 626395), (35, 572704), (40, 501116), (44, 455560), (55, 364448), (56, 357940), (70, 286352), (77, 260320), (80, 250558), (88, 227780), (110, 182224), (112, 178970), (140, 143176), (154, 130160), (160, 125279), (176, 113890), (220, 91112), (224, 89485), (280, 71588), (308, 65080), (352, 56945), (385, 52064), (440, 45556), (560, 35794), (616, 32540), (770, 26032), (880, 22778), (1120, 17897), (1232, 16270), (1540, 13016), (1627, 12320), (1760, 11389), (2464, 8135), (3080, 6508), (3254, 6160)]