20670260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{743}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 47246976

約数和(自身を除く): 26576716

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 428, 535, 743, 1070, 1391, 1486, 2140, 2782, 2972, 3715, 5564, 6955, 7430, 9659, 13910, 14860, 19318, 27820, 38636, 48295, 79501, 96590, 159002, 193180, 318004, 397505, 795010, 1033513, 1590020, 2067026, 4134052, 5167565, 10335130, 20670260]

約数ペア:

[(1, 20670260), (2, 10335130), (4, 5167565), (5, 4134052), (10, 2067026), (13, 1590020), (20, 1033513), (26, 795010), (52, 397505), (65, 318004), (107, 193180), (130, 159002), (214, 96590), (260, 79501), (428, 48295), (535, 38636), (743, 27820), (1070, 19318), (1391, 14860), (1486, 13910), (2140, 9659), (2782, 7430), (2972, 6955), (3715, 5564)]