20115340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6247}}^1$

素因数の和:6286

約数の個数: 48

約数和(自身を含む): 50383872

約数和(自身を除く): 30268532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6247, 12494, 24988, 31235, 43729, 62470, 87458, 124940, 143681, 174916, 218645, 287362, 437290, 574724, 718405, 874580, 1005767, 1436810, 2011534, 2873620, 4023068, 5028835, 10057670, 20115340]

約数ペア:

[(1, 20115340), (2, 10057670), (4, 5028835), (5, 4023068), (7, 2873620), (10, 2011534), (14, 1436810), (20, 1005767), (23, 874580), (28, 718405), (35, 574724), (46, 437290), (70, 287362), (92, 218645), (115, 174916), (140, 143681), (161, 124940), (230, 87458), (322, 62470), (460, 43729), (644, 31235), (805, 24988), (1610, 12494), (3220, 6247)]