51687220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10463}}^1$

素因数の和:10504

約数の個数: 48

約数和(自身を含む): 123056640

約数和(自身を除く): 71369420

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 10463, 20926, 41852, 52315, 104630, 136019, 198797, 209260, 272038, 397594, 544076, 680095, 795188, 993985, 1360190, 1987970, 2584361, 2720380, 3975940, 5168722, 10337444, 12921805, 25843610, 51687220]

約数ペア:

[(1, 51687220), (2, 25843610), (4, 12921805), (5, 10337444), (10, 5168722), (13, 3975940), (19, 2720380), (20, 2584361), (26, 1987970), (38, 1360190), (52, 993985), (65, 795188), (76, 680095), (95, 544076), (130, 397594), (190, 272038), (247, 209260), (260, 198797), (380, 136019), (494, 104630), (988, 52315), (1235, 41852), (2470, 20926), (4940, 10463)]