18319360

素因数分解:

$2^{11}\times 5^1\times {\mathrm{1789}}^1$

素因数の和:1816

約数の個数: 48

約数和(自身を含む): 43980300

約数和(自身を除く): 25660940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1789, 2048, 2560, 3578, 5120, 7156, 8945, 10240, 14312, 17890, 28624, 35780, 57248, 71560, 114496, 143120, 228992, 286240, 457984, 572480, 915968, 1144960, 1831936, 2289920, 3663872, 4579840, 9159680, 18319360]

約数ペア:

[(1, 18319360), (2, 9159680), (4, 4579840), (5, 3663872), (8, 2289920), (10, 1831936), (16, 1144960), (20, 915968), (32, 572480), (40, 457984), (64, 286240), (80, 228992), (128, 143120), (160, 114496), (256, 71560), (320, 57248), (512, 35780), (640, 28624), (1024, 17890), (1280, 14312), (1789, 10240), (2048, 8945), (2560, 7156), (3578, 5120)]