1993210880

素因数分解:

$2^{10}\times 5^1\times {\mathrm{389299}}^1$

素因数の和:389324

約数の個数: 44

約数和(自身を含む): 4781382600

約数和(自身を除く): 2788171720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 389299, 778598, 1557196, 1946495, 3114392, 3892990, 6228784, 7785980, 12457568, 15571960, 24915136, 31143920, 49830272, 62287840, 99660544, 124575680, 199321088, 249151360, 398642176, 498302720, 996605440, 1993210880]

約数ペア:

[(1, 1993210880), (2, 996605440), (4, 498302720), (5, 398642176), (8, 249151360), (10, 199321088), (16, 124575680), (20, 99660544), (32, 62287840), (40, 49830272), (64, 31143920), (80, 24915136), (128, 15571960), (160, 12457568), (256, 7785980), (320, 6228784), (512, 3892990), (640, 3114392), (1024, 1946495), (1280, 1557196), (2560, 778598), (5120, 389299)]