18415788

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{59}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 47275200

約数和(自身を除く): 28859412

約数列:

[1, 2, 3, 4, 6, 12, 19, 37, 38, 57, 59, 74, 76, 111, 114, 118, 148, 177, 222, 228, 236, 354, 444, 703, 708, 1121, 1369, 1406, 2109, 2183, 2242, 2738, 2812, 3363, 4107, 4218, 4366, 4484, 5476, 6549, 6726, 8214, 8436, 8732, 13098, 13452, 16428, 26011, 26196, 41477, 52022, 78033, 80771, 82954, 104044, 124431, 156066, 161542, 165908, 242313, 248862, 312132, 323084, 484626, 497724, 969252, 1534649, 3069298, 4603947, 6138596, 9207894, 18415788]

約数ペア:

[(1, 18415788), (2, 9207894), (3, 6138596), (4, 4603947), (6, 3069298), (12, 1534649), (19, 969252), (37, 497724), (38, 484626), (57, 323084), (59, 312132), (74, 248862), (76, 242313), (111, 165908), (114, 161542), (118, 156066), (148, 124431), (177, 104044), (222, 82954), (228, 80771), (236, 78033), (354, 52022), (444, 41477), (703, 26196), (708, 26011), (1121, 16428), (1369, 13452), (1406, 13098), (2109, 8732), (2183, 8436), (2242, 8214), (2738, 6726), (2812, 6549), (3363, 5476), (4107, 4484), (4218, 4366)]