38720385

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 80870400

約数和(自身を除く): 42150015

約数列:

[1, 3, 5, 9, 11, 15, 19, 23, 33, 45, 55, 57, 69, 95, 99, 115, 165, 171, 179, 207, 209, 253, 285, 345, 437, 495, 537, 627, 759, 855, 895, 1035, 1045, 1265, 1311, 1611, 1881, 1969, 2185, 2277, 2685, 3135, 3401, 3795, 3933, 4117, 4807, 5907, 6555, 8055, 9405, 9845, 10203, 11385, 12351, 14421, 17005, 17721, 19665, 20585, 24035, 29535, 30609, 37053, 37411, 43263, 45287, 51015, 61755, 72105, 78223, 88605, 112233, 135861, 153045, 185265, 187055, 216315, 226435, 234669, 336699, 391115, 407583, 561165, 679305, 704007, 860453, 1173345, 1683495, 2037915, 2581359, 3520035, 4302265, 7744077, 12906795, 38720385]

約数ペア:

[(1, 38720385), (3, 12906795), (5, 7744077), (9, 4302265), (11, 3520035), (15, 2581359), (19, 2037915), (23, 1683495), (33, 1173345), (45, 860453), (55, 704007), (57, 679305), (69, 561165), (95, 407583), (99, 391115), (115, 336699), (165, 234669), (171, 226435), (179, 216315), (207, 187055), (209, 185265), (253, 153045), (285, 135861), (345, 112233), (437, 88605), (495, 78223), (537, 72105), (627, 61755), (759, 51015), (855, 45287), (895, 43263), (1035, 37411), (1045, 37053), (1265, 30609), (1311, 29535), (1611, 24035), (1881, 20585), (1969, 19665), (2185, 17721), (2277, 17005), (2685, 14421), (3135, 12351), (3401, 11385), (3795, 10203), (3933, 9845), (4117, 9405), (4807, 8055), (5907, 6555)]