1295990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{359}}^1$

素因数の和:404

約数の個数: 24

約数和(自身を含む): 2468880

約数和(自身を除く): 1172890

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 359, 361, 718, 722, 1795, 1805, 3590, 3610, 6821, 13642, 34105, 68210, 129599, 259198, 647995, 1295990]

約数ペア:

[(1, 1295990), (2, 647995), (5, 259198), (10, 129599), (19, 68210), (38, 34105), (95, 13642), (190, 6821), (359, 3610), (361, 3590), (718, 1805), (722, 1795)]