18181120

素因数分解:

$2^{10}\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:145

約数の個数: 88

約数和(自身を含む): 45099504

約数和(自身を除く): 26918384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 67, 80, 106, 128, 134, 160, 212, 256, 265, 268, 320, 335, 424, 512, 530, 536, 640, 670, 848, 1024, 1060, 1072, 1280, 1340, 1696, 2120, 2144, 2560, 2680, 3392, 3551, 4240, 4288, 5120, 5360, 6784, 7102, 8480, 8576, 10720, 13568, 14204, 16960, 17152, 17755, 21440, 27136, 28408, 33920, 34304, 35510, 42880, 54272, 56816, 67840, 68608, 71020, 85760, 113632, 135680, 142040, 171520, 227264, 271360, 284080, 343040, 454528, 568160, 909056, 1136320, 1818112, 2272640, 3636224, 4545280, 9090560, 18181120]

約数ペア:

[(1, 18181120), (2, 9090560), (4, 4545280), (5, 3636224), (8, 2272640), (10, 1818112), (16, 1136320), (20, 909056), (32, 568160), (40, 454528), (53, 343040), (64, 284080), (67, 271360), (80, 227264), (106, 171520), (128, 142040), (134, 135680), (160, 113632), (212, 85760), (256, 71020), (265, 68608), (268, 67840), (320, 56816), (335, 54272), (424, 42880), (512, 35510), (530, 34304), (536, 33920), (640, 28408), (670, 27136), (848, 21440), (1024, 17755), (1060, 17152), (1072, 16960), (1280, 14204), (1340, 13568), (1696, 10720), (2120, 8576), (2144, 8480), (2560, 7102), (2680, 6784), (3392, 5360), (3551, 5120), (4240, 4288)]