18119680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{3539}}^1$

素因数の和:3564

約数の個数: 44

約数和(自身を含む): 43478280

約数和(自身を除く): 25358600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 3539, 5120, 7078, 14156, 17695, 28312, 35390, 56624, 70780, 113248, 141560, 226496, 283120, 452992, 566240, 905984, 1132480, 1811968, 2264960, 3623936, 4529920, 9059840, 18119680]

約数ペア:

[(1, 18119680), (2, 9059840), (4, 4529920), (5, 3623936), (8, 2264960), (10, 1811968), (16, 1132480), (20, 905984), (32, 566240), (40, 452992), (64, 283120), (80, 226496), (128, 141560), (160, 113248), (256, 70780), (320, 56624), (512, 35390), (640, 28312), (1024, 17695), (1280, 14156), (2560, 7078), (3539, 5120)]