17955665

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:142

約数の個数: 64

約数和(自身を含む): 29245440

約数和(自身を除く): 11289775

約数列:

[1, 5, 7, 13, 19, 31, 35, 65, 67, 91, 95, 133, 155, 217, 247, 335, 403, 455, 469, 589, 665, 871, 1085, 1235, 1273, 1729, 2015, 2077, 2345, 2821, 2945, 4123, 4355, 6097, 6365, 7657, 8645, 8911, 10385, 14105, 14539, 16549, 20615, 27001, 30485, 38285, 39463, 44555, 53599, 72695, 82745, 115843, 135005, 189007, 197315, 267995, 276241, 513019, 579215, 945035, 1381205, 2565095, 3591133, 17955665]

約数ペア:

[(1, 17955665), (5, 3591133), (7, 2565095), (13, 1381205), (19, 945035), (31, 579215), (35, 513019), (65, 276241), (67, 267995), (91, 197315), (95, 189007), (133, 135005), (155, 115843), (217, 82745), (247, 72695), (335, 53599), (403, 44555), (455, 39463), (469, 38285), (589, 30485), (665, 27001), (871, 20615), (1085, 16549), (1235, 14539), (1273, 14105), (1729, 10385), (2015, 8911), (2077, 8645), (2345, 7657), (2821, 6365), (2945, 6097), (4123, 4355)]