8691740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 19504800

約数和(自身を除く): 10813060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 257, 356, 380, 445, 514, 890, 1028, 1285, 1691, 1780, 2570, 3382, 4883, 5140, 6764, 8455, 9766, 16910, 19532, 22873, 24415, 33820, 45746, 48830, 91492, 97660, 114365, 228730, 434587, 457460, 869174, 1738348, 2172935, 4345870, 8691740]

約数ペア:

[(1, 8691740), (2, 4345870), (4, 2172935), (5, 1738348), (10, 869174), (19, 457460), (20, 434587), (38, 228730), (76, 114365), (89, 97660), (95, 91492), (178, 48830), (190, 45746), (257, 33820), (356, 24415), (380, 22873), (445, 19532), (514, 16910), (890, 9766), (1028, 8455), (1285, 6764), (1691, 5140), (1780, 4883), (2570, 3382)]