16863920

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2969}}^1$

素因数の和:3053

約数の個数: 40

約数和(自身を含む): 39774240

約数和(自身を除く): 22910320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 2969, 5680, 5938, 11876, 14845, 23752, 29690, 47504, 59380, 118760, 210799, 237520, 421598, 843196, 1053995, 1686392, 2107990, 3372784, 4215980, 8431960, 16863920]

約数ペア:

[(1, 16863920), (2, 8431960), (4, 4215980), (5, 3372784), (8, 2107990), (10, 1686392), (16, 1053995), (20, 843196), (40, 421598), (71, 237520), (80, 210799), (142, 118760), (284, 59380), (355, 47504), (568, 29690), (710, 23752), (1136, 14845), (1420, 11876), (2840, 5938), (2969, 5680)]