388989945

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{50551}}^1$

素因数の和:50587

約数の個数: 40

約数和(自身を含む): 734015040

約数和(自身を除く): 345025095

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2565, 7695, 50551, 151653, 252755, 454959, 758265, 960469, 1364877, 2274795, 2881407, 4094631, 4802345, 6824385, 8644221, 14407035, 20473155, 25932663, 43221105, 77797989, 129663315, 388989945]

約数ペア:

[(1, 388989945), (3, 129663315), (5, 77797989), (9, 43221105), (15, 25932663), (19, 20473155), (27, 14407035), (45, 8644221), (57, 6824385), (81, 4802345), (95, 4094631), (135, 2881407), (171, 2274795), (285, 1364877), (405, 960469), (513, 758265), (855, 454959), (1539, 252755), (2565, 151653), (7695, 50551)]