20117791720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38688061}}^1$

素因数の和:38688085

約数の個数: 32

約数和(自身を含む): 48746958120

約数和(自身を除く): 28629166400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38688061, 77376122, 154752244, 193440305, 309504488, 386880610, 502944793, 773761220, 1005889586, 1547522440, 2011779172, 2514723965, 4023558344, 5029447930, 10058895860, 20117791720]

約数ペア:

[(1, 20117791720), (2, 10058895860), (4, 5029447930), (5, 4023558344), (8, 2514723965), (10, 2011779172), (13, 1547522440), (20, 1005889586), (26, 773761220), (40, 502944793), (52, 386880610), (65, 309504488), (104, 193440305), (130, 154752244), (260, 77376122), (520, 38688061)]