19516480

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{859}}^1$

素因数の和:947

約数の個数: 56

約数和(自身を含む): 47183040

約数和(自身を除く): 27666560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 859, 1136, 1420, 1718, 2272, 2840, 3436, 4295, 4544, 5680, 6872, 8590, 11360, 13744, 17180, 22720, 27488, 34360, 54976, 60989, 68720, 121978, 137440, 243956, 274880, 304945, 487912, 609890, 975824, 1219780, 1951648, 2439560, 3903296, 4879120, 9758240, 19516480]

約数ペア:

[(1, 19516480), (2, 9758240), (4, 4879120), (5, 3903296), (8, 2439560), (10, 1951648), (16, 1219780), (20, 975824), (32, 609890), (40, 487912), (64, 304945), (71, 274880), (80, 243956), (142, 137440), (160, 121978), (284, 68720), (320, 60989), (355, 54976), (568, 34360), (710, 27488), (859, 22720), (1136, 17180), (1420, 13744), (1718, 11360), (2272, 8590), (2840, 6872), (3436, 5680), (4295, 4544)]