18767288

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 20631112

約数列:

[1, 2, 4, 8, 19, 37, 38, 47, 71, 74, 76, 94, 142, 148, 152, 188, 284, 296, 376, 568, 703, 893, 1349, 1406, 1739, 1786, 2627, 2698, 2812, 3337, 3478, 3572, 5254, 5396, 5624, 6674, 6956, 7144, 10508, 10792, 13348, 13912, 21016, 26696, 33041, 49913, 63403, 66082, 99826, 123469, 126806, 132164, 199652, 246938, 253612, 264328, 399304, 493876, 507224, 987752, 2345911, 4691822, 9383644, 18767288]

約数ペア:

[(1, 18767288), (2, 9383644), (4, 4691822), (8, 2345911), (19, 987752), (37, 507224), (38, 493876), (47, 399304), (71, 264328), (74, 253612), (76, 246938), (94, 199652), (142, 132164), (148, 126806), (152, 123469), (188, 99826), (284, 66082), (296, 63403), (376, 49913), (568, 33041), (703, 26696), (893, 21016), (1349, 13912), (1406, 13348), (1739, 10792), (1786, 10508), (2627, 7144), (2698, 6956), (2812, 6674), (3337, 5624), (3478, 5396), (3572, 5254)]