198624640

素因数分解:

$2^7\times 5^1\times {\mathrm{503}}^1\times {\mathrm{617}}^1$

素因数の和:1139

約数の個数: 64

約数和(自身を含む): 476552160

約数和(自身を除く): 277927520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 503, 617, 640, 1006, 1234, 2012, 2468, 2515, 3085, 4024, 4936, 5030, 6170, 8048, 9872, 10060, 12340, 16096, 19744, 20120, 24680, 32192, 39488, 40240, 49360, 64384, 78976, 80480, 98720, 160960, 197440, 310351, 321920, 394880, 620702, 1241404, 1551755, 2482808, 3103510, 4965616, 6207020, 9931232, 12414040, 19862464, 24828080, 39724928, 49656160, 99312320, 198624640]

約数ペア:

[(1, 198624640), (2, 99312320), (4, 49656160), (5, 39724928), (8, 24828080), (10, 19862464), (16, 12414040), (20, 9931232), (32, 6207020), (40, 4965616), (64, 3103510), (80, 2482808), (128, 1551755), (160, 1241404), (320, 620702), (503, 394880), (617, 321920), (640, 310351), (1006, 197440), (1234, 160960), (2012, 98720), (2468, 80480), (2515, 78976), (3085, 64384), (4024, 49360), (4936, 40240), (5030, 39488), (6170, 32192), (8048, 24680), (9872, 20120), (10060, 19744), (12340, 16096)]