18298880

素因数分解:

$2^{11}\times 5^1\times {\mathrm{1787}}^1$

素因数の和:1814

約数の個数: 48

約数和(自身を含む): 43931160

約数和(自身を除く): 25632280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1787, 2048, 2560, 3574, 5120, 7148, 8935, 10240, 14296, 17870, 28592, 35740, 57184, 71480, 114368, 142960, 228736, 285920, 457472, 571840, 914944, 1143680, 1829888, 2287360, 3659776, 4574720, 9149440, 18298880]

約数ペア:

[(1, 18298880), (2, 9149440), (4, 4574720), (5, 3659776), (8, 2287360), (10, 1829888), (16, 1143680), (20, 914944), (32, 571840), (40, 457472), (64, 285920), (80, 228736), (128, 142960), (160, 114368), (256, 71480), (320, 57184), (512, 35740), (640, 28592), (1024, 17870), (1280, 14296), (1787, 10240), (2048, 8935), (2560, 7148), (3574, 5120)]