18924620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{509}}^1$

素因数の和:555

約数の個数: 72

約数和(自身を含む): 47038320

約数和(自身を除く): 28113700

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 169, 220, 260, 286, 338, 509, 572, 676, 715, 845, 1018, 1430, 1690, 1859, 2036, 2545, 2860, 3380, 3718, 5090, 5599, 6617, 7436, 9295, 10180, 11198, 13234, 18590, 22396, 26468, 27995, 33085, 37180, 55990, 66170, 72787, 86021, 111980, 132340, 145574, 172042, 291148, 344084, 363935, 430105, 727870, 860210, 946231, 1455740, 1720420, 1892462, 3784924, 4731155, 9462310, 18924620]

約数ペア:

[(1, 18924620), (2, 9462310), (4, 4731155), (5, 3784924), (10, 1892462), (11, 1720420), (13, 1455740), (20, 946231), (22, 860210), (26, 727870), (44, 430105), (52, 363935), (55, 344084), (65, 291148), (110, 172042), (130, 145574), (143, 132340), (169, 111980), (220, 86021), (260, 72787), (286, 66170), (338, 55990), (509, 37180), (572, 33085), (676, 27995), (715, 26468), (845, 22396), (1018, 18590), (1430, 13234), (1690, 11198), (1859, 10180), (2036, 9295), (2545, 7436), (2860, 6617), (3380, 5599), (3718, 5090)]