20512170

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{10853}}^1$

素因数の和:10876

約数の個数: 64

約数和(自身を含む): 62519040

約数和(自身を除く): 42006870

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 10853, 21706, 32559, 54265, 65118, 75971, 97677, 108530, 151942, 162795, 195354, 227913, 293031, 325590, 379855, 455826, 488385, 586062, 683739, 759710, 976770, 1139565, 1367478, 1465155, 2051217, 2279130, 2930310, 3418695, 4102434, 6837390, 10256085, 20512170]

約数ペア:

[(1, 20512170), (2, 10256085), (3, 6837390), (5, 4102434), (6, 3418695), (7, 2930310), (9, 2279130), (10, 2051217), (14, 1465155), (15, 1367478), (18, 1139565), (21, 976770), (27, 759710), (30, 683739), (35, 586062), (42, 488385), (45, 455826), (54, 379855), (63, 325590), (70, 293031), (90, 227913), (105, 195354), (126, 162795), (135, 151942), (189, 108530), (210, 97677), (270, 75971), (315, 65118), (378, 54265), (630, 32559), (945, 21706), (1890, 10853)]