81139975

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1061}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 126420480

約数和(自身を除く): 45280505

約数列:

[1, 5, 7, 19, 23, 25, 35, 95, 115, 133, 161, 175, 437, 475, 575, 665, 805, 1061, 2185, 3059, 3325, 4025, 5305, 7427, 10925, 15295, 20159, 24403, 26525, 37135, 76475, 100795, 122015, 141113, 170821, 185675, 463657, 503975, 610075, 705565, 854105, 2318285, 3245599, 3527825, 4270525, 11591425, 16227995, 81139975]

約数ペア:

[(1, 81139975), (5, 16227995), (7, 11591425), (19, 4270525), (23, 3527825), (25, 3245599), (35, 2318285), (95, 854105), (115, 705565), (133, 610075), (161, 503975), (175, 463657), (437, 185675), (475, 170821), (575, 141113), (665, 122015), (805, 100795), (1061, 76475), (2185, 37135), (3059, 26525), (3325, 24403), (4025, 20159), (5305, 15295), (7427, 10925)]