81285888

素因数分解:

$2^8\times 3^1\times {\mathrm{53}}^1\times {\mathrm{1997}}^1$

素因数の和:2069

約数の個数: 72

約数和(自身を含む): 220531248

約数和(自身を除く): 139245360

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 53, 64, 96, 106, 128, 159, 192, 212, 256, 318, 384, 424, 636, 768, 848, 1272, 1696, 1997, 2544, 3392, 3994, 5088, 5991, 6784, 7988, 10176, 11982, 13568, 15976, 20352, 23964, 31952, 40704, 47928, 63904, 95856, 105841, 127808, 191712, 211682, 255616, 317523, 383424, 423364, 511232, 635046, 766848, 846728, 1270092, 1533696, 1693456, 2540184, 3386912, 5080368, 6773824, 10160736, 13547648, 20321472, 27095296, 40642944, 81285888]

約数ペア:

[(1, 81285888), (2, 40642944), (3, 27095296), (4, 20321472), (6, 13547648), (8, 10160736), (12, 6773824), (16, 5080368), (24, 3386912), (32, 2540184), (48, 1693456), (53, 1533696), (64, 1270092), (96, 846728), (106, 766848), (128, 635046), (159, 511232), (192, 423364), (212, 383424), (256, 317523), (318, 255616), (384, 211682), (424, 191712), (636, 127808), (768, 105841), (848, 95856), (1272, 63904), (1696, 47928), (1997, 40704), (2544, 31952), (3392, 23964), (3994, 20352), (5088, 15976), (5991, 13568), (6784, 11982), (7988, 10176)]