2591980

素因数分解:

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

素因数の和:406

約数の個数: 36

約数和(自身を含む): 5760720

約数和(自身を除く): 3168740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 359, 361, 380, 718, 722, 1436, 1444, 1795, 1805, 3590, 3610, 6821, 7180, 7220, 13642, 27284, 34105, 68210, 129599, 136420, 259198, 518396, 647995, 1295990, 2591980]

約数ペア:

[(1, 2591980), (2, 1295990), (4, 647995), (5, 518396), (10, 259198), (19, 136420), (20, 129599), (38, 68210), (76, 34105), (95, 27284), (190, 13642), (359, 7220), (361, 7180), (380, 6821), (718, 3610), (722, 3590), (1436, 1805), (1444, 1795)]