20899681472

素因数分解:

$2^6\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{205253}}^1$

素因数の和:205345

約数の個数: 56

約数和(自身を含む): 43584455376

約数和(自身を除く): 22684773904

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 64, 74, 86, 148, 172, 296, 344, 592, 688, 1184, 1376, 1591, 2368, 2752, 3182, 6364, 12728, 25456, 50912, 101824, 205253, 410506, 821012, 1642024, 3284048, 6568096, 7594361, 8825879, 13136192, 15188722, 17651758, 30377444, 35303516, 60754888, 70607032, 121509776, 141214064, 243019552, 282428128, 326557523, 486039104, 564856256, 653115046, 1306230092, 2612460184, 5224920368, 10449840736, 20899681472]

約数ペア:

[(1, 20899681472), (2, 10449840736), (4, 5224920368), (8, 2612460184), (16, 1306230092), (32, 653115046), (37, 564856256), (43, 486039104), (64, 326557523), (74, 282428128), (86, 243019552), (148, 141214064), (172, 121509776), (296, 70607032), (344, 60754888), (592, 35303516), (688, 30377444), (1184, 17651758), (1376, 15188722), (1591, 13136192), (2368, 8825879), (2752, 7594361), (3182, 6568096), (6364, 3284048), (12728, 1642024), (25456, 821012), (50912, 410506), (101824, 205253)]