18312195

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 34214400

約数和(自身を除く): 15902205

約数列:

[1, 3, 5, 11, 15, 29, 33, 43, 55, 87, 89, 129, 145, 165, 215, 267, 319, 435, 445, 473, 645, 957, 979, 1247, 1335, 1419, 1595, 2365, 2581, 2937, 3741, 3827, 4785, 4895, 6235, 7095, 7743, 11481, 12905, 13717, 14685, 18705, 19135, 28391, 38715, 41151, 42097, 57405, 68585, 85173, 110983, 126291, 141955, 205755, 210485, 332949, 425865, 554915, 631455, 1220813, 1664745, 3662439, 6104065, 18312195]

約数ペア:

[(1, 18312195), (3, 6104065), (5, 3662439), (11, 1664745), (15, 1220813), (29, 631455), (33, 554915), (43, 425865), (55, 332949), (87, 210485), (89, 205755), (129, 141955), (145, 126291), (165, 110983), (215, 85173), (267, 68585), (319, 57405), (435, 42097), (445, 41151), (473, 38715), (645, 28391), (957, 19135), (979, 18705), (1247, 14685), (1335, 13717), (1419, 12905), (1595, 11481), (2365, 7743), (2581, 7095), (2937, 6235), (3741, 4895), (3827, 4785)]