19993168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5059}}^1$

素因数の和:5099

約数の個数: 40

約数和(自身を含む): 43920800

約数和(自身を除く): 23927632

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 5059, 10118, 20236, 40472, 65767, 80944, 96121, 131534, 192242, 263068, 384484, 526136, 768968, 1052272, 1249573, 1537936, 2499146, 4998292, 9996584, 19993168]

約数ペア:

[(1, 19993168), (2, 9996584), (4, 4998292), (8, 2499146), (13, 1537936), (16, 1249573), (19, 1052272), (26, 768968), (38, 526136), (52, 384484), (76, 263068), (104, 192242), (152, 131534), (208, 96121), (247, 80944), (304, 65767), (494, 40472), (988, 20236), (1976, 10118), (3952, 5059)]